Alicia

||
 * || **Report:** || **All Questions**
 * **Program:** || **Algebra II**  ||
 * **Test:** || **Working With Quadratics**  ||
 * **User:** || **Baker, Alicia**  ||
 * **Session Date:** || **03/03/11 - 11:11 AM CST**  ||
 * **% Correct:** || **(13/33) 39.4%**  ||
 * **Correct Questions:** || **13**  ||
 * **Missed Questions:** || **20**  ||   ||

||  ||   || 14x + 6 = -4x2 Will the graph of the equation above intersect the x-axis in zero, one, or two points?
 * View Missed | View Correct | View All ||

(//Use the quadratic formula to help you answer this question.//) ||  ||


 * || Correct Answer: ||  ||   || **A.** || two ||   ||
 * ||  ||   || **B.** || zero ||   ||
 * || Answered Incorrect: ||  ||   || **C.** || There is not enough information. ||   ||
 * ||  ||   || **D.** || one ||   ||

|| || || y = x2 + 7x + 10 What are the x-intercepts of the graph of the equation above? || ||


 * || Correct Answer: ||  ||   || **A.** || (-2, 0) and (-5, 0) ||   ||
 * ||  ||   || **B.** || (2, 0) and (-5, 0) ||   ||
 * ||  ||   || **C.** || (-2, 0) and (5, 0) ||   ||
 * || Answered Incorrect: ||  ||   || **D.** || (2, 0) and (5, 0) ||   ||

|| || || Vincente put his money into a mutual fund, where the amount of money he earned or lost can be found using the equation below, where //M// is the money Vincente earned or lost and //x// is time in years. //M// = //x//2 - 5//x// + 286 If Vincente gained $300, how long did he have his money in the mutual fund? || ||


 * ||  ||   || **A.** || 2 years ||   ||
 * || Correct Answer: ||  ||   || **B.** || 7 years ||   ||
 * || Answered Incorrect: ||  ||   || **C.** || 6 years ||   ||
 * ||  ||   || **D.** || 8 years ||   ||

|| || || 1x2 + 2x = -1 Will the graph of the equation above intersect the x-axis in zero, one, or two points?

(//Use the quadratic formula to help you answer this question.//) || ||


 * ||  ||   || **A.** || zero ||   ||
 * || Answered Incorrect: ||  ||   || **B.** || two ||   ||
 * ||  ||   || **C.** || There is not enough information. ||   ||
 * || Correct Answer: ||  ||   || **D.** || one ||   ||

|| || || A quadratic equation is written in 4 equivalent forms below. # y = x2 + 10x + 24
 * 1) y = (x + 4)(x + 6)
 * 2) y = (x + 5)2 - 1
 * 3) y = x(x + 10) + 24

Which of the forms shown above would be the most useful if attempting to find the x-intercepts of the quadratic equation? || ||


 * || Answered Correct: ||  ||   || **A.** || II. ||   ||
 * ||  ||   || **B.** || IV. ||   ||
 * ||  ||   || **C.** || I. ||   ||
 * ||  ||   || **D.** || III. ||   ||

|| || || If the graph of f(x) = x2 is shifted 4 units to the right, then what would be the equation of the new graph? || ||


 * || Correct Answer: ||  ||   || **A.** || g(x) = (x - 4)2 ||   ||
 * ||  ||   || **B.** || g(x) = x2 - 4 ||   ||
 * || Answered Incorrect: ||  ||   || **C.** || g(x) = x2 + 4 ||   ||
 * ||  ||   || **D.** || g(x) = (x + 4)2 ||   ||

|| || || y = x2 - 16 Which of the following tables matches the equation shown above? || || **x** || **y** ||
 * -1 || -15 ||
 * 0 || -16 ||
 * 1 || -15 ||
 * 2 || 20 ||  ||   ||   || **x** || **y** ||
 * -1 || -12 ||
 * 0 || -16 ||
 * 1 || -12 ||
 * 2 || -12 ||  ||   ||   || **x** || **y** ||
 * -1 || -13 ||
 * 0 || -19 ||
 * 1 || -13 ||
 * 2 || -12 ||  ||   ||   || **x** || **y** ||
 * -1 || -15 ||
 * 0 || -16 ||
 * 1 || -15 ||
 * 2 || -12 ||  ||
 * **W** ||  || **X** ||   || **Y** ||   || **Z** ||   ||   ||


 * ||  ||   || **A.** || Y ||   ||
 * || Answered Correct: ||  ||   || **B.** || Z ||   ||
 * ||  ||   || **C.** || W ||   ||
 * ||  ||   || **D.** || X ||   ||

|| || || What is the x-coordinate of the vertex for the parabola defined by the function y = -2x2 + 9x + 1? || ||


 * ||  ||   || **A.** || 1/9 ||   ||
 * ||  ||   || **B.** || -9 ||   ||
 * || Answered Incorrect: ||  ||   || **C.** || -9/4 ||   ||
 * || Correct Answer: ||  ||   || **D.** || 9/4 ||   ||

|| || || y = x2 + 3x - 10 What are the x-intercepts of the graph of the equation above? || ||


 * ||  ||   || **A.** || (-5, 0) and (-2, 0) ||   ||
 * || Correct Answer: ||  ||   || **B.** || (-5, 0) and (2, 0) ||   ||
 * ||  ||   || **C.** || (5, 0) and (2, 0) ||   ||
 * || Answered Incorrect: ||  ||   || **D.** || (5, 0) and (-2, 0) ||   ||

|| || || What is the equation for the axis of symmetry of the quadratic function //f(x)// = 3//x//2 + 18//x// - 2? || ||


 * || Correct Answer: ||  ||   || **A.** || //x// = -3 ||   ||
 * || Answered Incorrect: ||  ||   || **B.** || //x// = 3 ||   ||
 * ||  ||   || **C.** || //x// = -6 ||   ||
 * ||  ||   || **D.** || //x// = -2 ||   ||

|| || || 2x2 - 1x = -3

Will the graph of the equation above intersect the x-axis in zero, one, or two points?

(//Use the quadratic formula to help you answer this question.//) || ||


 * || Answered Incorrect: ||  ||   || **A.** || two ||   ||
 * ||  ||   || **B.** || one ||   ||
 * ||  ||   || **C.** || There is not enough information. ||   ||
 * || Correct Answer: ||  ||   || **D.** || zero ||   ||

|| || || || **x** || **y** || Which of the following equations matches the table shown above? || ||
 * -1 || -21 ||
 * 0 || -24 ||
 * 1 || -25 ||
 * 2 || -24 ||
 * 3 || -21 ||


 * || Answered Correct: ||  ||   || **A.** || //y// = //x//2 - 2//x// - 24 ||   ||
 * ||  ||   || **B.** || //y// = -2//x// - 23 ||   ||
 * ||  ||   || **C.** || //y// = //x//3 - 21 ||   ||
 * ||  ||   || **D.** || //y// = //x2 + 2//x //- 24// ||   ||

|| || || y = 5x2 + 8x + 12 Will the parabola of this equation open upward or downward? || ||


 * ||  ||   || **A.** || There is not enough information. ||   ||
 * ||  ||   || **B.** || downward ||   ||
 * || Answered Correct: ||  ||   || **C.** || upward ||   ||

|| || || A kicker kicks a football during practice. The equation below can be used to find the height (//h//) in feet of the football after //t// seconds. //h//(//t//) = -16//t//2 + 32//t// After how many seconds will the ball hit the ground? || ||


 * ||  ||   || **A.** || 3 ||   ||
 * ||  ||   || **B.** || 1 ||   ||
 * ||  ||   || **C.** || 32 ||   ||
 * || Answered Correct: ||  ||   || **D.** || 2 ||   ||

|| || || Clay built a dog pen based on the diagram below. The diagram is not drawn to scale.


 * || A = 98 m2 ||  || //x// - 3 ||
 * //x// + 4 ||  ||

What are the dimensions of the dog pen? || ||


 * ||  ||   || **A.** || 4 m by 3 m ||   ||
 * ||  ||   || **B.** || 10 m by 11 m ||   ||
 * ||  ||   || **C.** || 49 m by 2 m ||   ||
 * || Answered Correct: ||  ||   || **D.** || 14 m by 7 m ||   ||

|| || || Which of the following equations fits this graph? || ||


 * ||  ||   || **A.** || y = 2x2 + 4x + 1 ||   ||
 * ||  ||   || **B.** || y = 2x2 + 2x - 1 ||   ||
 * || Correct Answer: ||  ||   || **C.** || y = -2x2 + 4x + 1 ||   ||
 * || Answered Incorrect: ||  ||   || **D.** || y = -2x2 + x + 1 ||   ||

|| || || y = x2 + 3x - 10 What are the x-intercepts of the graph of the equation above? || ||


 * ||  ||   || **A.** || (5, 0) and (2, 0) ||   ||
 * || Answered Incorrect: ||  ||   || **B.** || (5, 0) and (-2, 0) ||   ||
 * ||  ||   || **C.** || (-5, 0) and (-2, 0) ||   ||
 * || Correct Answer: ||  ||   || **D.** || (-5, 0) and (2, 0) ||   ||

|| || || Annalise, Torah, and Samantha are cousins. Annalise is 2 years older than Torah, and Samantha is 2 years older than Annalise. If the product of Annalise's and Samantha's ages is 224, how old is Annalise? || ||


 * ||  ||   || **A.** || 26 ||   ||
 * || Answered Correct: ||  ||   || **B.** || 14 ||   ||
 * ||  ||   || **C.** || 16 ||   ||
 * ||  ||   || **D.** || 12 ||   ||

|| || || In which direction must the graph of f(x) = x2 be shifted to produce the graph of g(x) = (x - 5)2? || ||


 * ||  ||   || **A.** || down ||   ||
 * || Answered Incorrect: ||  ||   || **B.** || left ||   ||
 * || Correct Answer: ||  ||   || **C.** || right ||   ||
 * ||  ||   || **D.** || up ||   ||

|| || || Which of the following equations fits this graph? || ||


 * ||  ||   || **A.** || y = 2x2 + 4x - 3 ||   ||
 * || Answered Incorrect: ||  ||   || **B.** || y = x2 - x - 3 ||   ||
 * ||  ||   || **C.** || y = x2 + 2x + 3 ||   ||
 * || Correct Answer: ||  ||   || **D.** || y = x2 + 2x - 3 ||   ||

|| || || Which of the following represents the equation of a parabola that opens down and is narrower than the graph of //y// = //x//2? || ||


 * ||  ||   || **A.** || [[image:http://media.studyisland.com/cgi-bin/mimetex.cgi?y%5C%20=%5C%20%5Cfrac%7B1%7D%7B4%7Dx%5E%7B2%7D%5C%20-%5C%205x%5C%20+%5C%2015]] ||   ||
 * || Answered Correct: ||  ||   || **B.** || [[image:http://media.studyisland.com/cgi-bin/mimetex.cgi?y%5C%20=%5C%20-4x%5E%7B2%7D%5C%20+%5C%205x%5C%20+%5C%2015]] ||   ||
 * ||  ||   || **C.** || [[image:http://media.studyisland.com/cgi-bin/mimetex.cgi?y%5C%20=%5C%204x%5E%7B2%7D%5C%20-%5C%205x%5C%20+%5C%2015]] ||   ||
 * ||  ||   || **D.** || [[image:http://media.studyisland.com/cgi-bin/mimetex.cgi?y%5C%20=%5C%20-%5Cfrac%7B1%7D%7B4%7Dx%5E%7B2%7D%5C%20+%5C%205x%5C%20+%5C%2015]] ||   ||

|| || || y = -1x2 + 9x + 18 Will the parabola of this equation open upward or downward? || ||


 * || Answered Correct: ||  ||   || **A.** || downward ||   ||
 * ||  ||   || **B.** || There is not enough information. ||   ||
 * ||  ||   || **C.** || upward ||   ||

|| || || y = x2 + 7x + 10 What are the x-intercepts of the graph of the equation above? || ||


 * || Correct Answer: ||  ||   || **A.** || (-2, 0) and (-5, 0) ||   ||
 * || Answered Incorrect: ||  ||   || **B.** || (2, 0) and (5, 0) ||   ||
 * ||  ||   || **C.** || (-2, 0) and (5, 0) ||   ||
 * ||  ||   || **D.** || (2, 0) and (-5, 0) ||   ||

|| || || The curve given by the equation //y// = 2//x//2 - 2 is graphed above. How will the graph of the equation be affected if the equation is changed to //y// = -2//x//2 - 2? || ||


 * ||  ||   || **A.** || The graph will be wider. ||   ||
 * ||  ||   || **B.** || The graph will be shifted down. ||   ||
 * || Answered Correct: ||  ||   || **C.** || The graph will open down. ||   ||
 * ||  ||   || **D.** || The graph will be the same. ||   ||

|| || || A quadratic equation is written in 4 equivalent forms below. # y = x2 + 10x + 24
 * 1) y = (x + 4)(x + 6)
 * 2) y = (x + 5)2 - 1
 * 3) y = x(x + 4) + 6(x + 4)

Which of the forms shown above would be the most useful if attempting to find the y-intercept of the quadratic equation? || ||


 * ||  ||   || **A.** || IV. ||   ||
 * || Answered Correct: ||  ||   || **B.** || I. ||   ||
 * ||  ||   || **C.** || II. ||   ||
 * ||  ||   || **D.** || III. ||   ||

|| || || The curve given by the equation //y// = 2//x//2 - 2 is graphed above. How will the graph of the equation be affected if the equation is changed to //y// = 2//x//2 + 3? || ||


 * ||  ||   || **A.** || The graph will be the same. ||   ||
 * || Answered Incorrect: ||  ||   || **B.** || The graph will be wider. ||   ||
 * || Correct Answer: ||  ||   || **C.** || The graph will be shifted up. ||   ||
 * ||  ||   || **D.** || The graph will be shifted down. ||   ||

|| || || y = x2 + 2x - 8 Will the graph of the equation above intersect the x-axis in zero, one, or two points?

(//Use factoring to help you answer this question.//) || ||


 * ||  ||   || **A.** || zero ||   ||
 * || Correct Answer: ||  ||   || **B.** || two ||   ||
 * ||  ||   || **C.** || one ||   ||
 * || Answered Incorrect: ||  ||   || **D.** || There is not enough information. ||   ||

|| || || A quadratic equation is written in 4 equivalent forms below. # y = x2 + 10x + 24
 * 1) y = (x + 4)(x + 6)
 * 2) y = (x + 5)2 - 1
 * 3) y = x(x + 10) + 24

Which of the forms shown above would be the most useful if attempting to find the vertex of the quadratic equation? || ||


 * || Answered Incorrect: ||  ||   || **A.** || II. ||   ||
 * ||  ||   || **B.** || I. ||   ||
 * ||  ||   || **C.** || IV. ||   ||
 * || Correct Answer: ||  ||   || **D.** || III. ||   ||

|| || || Phil hit 9 more home runs than Charlie did last season. The product of their home runs from last season is 220. How many home runs did Charlie hit last season? || ||


 * ||  ||   || **A.** || 211 ||   ||
 * ||  ||   || **B.** || 20 ||   ||
 * || Answered Correct: ||  ||   || **C.** || 11 ||   ||
 * ||  ||   || **D.** || 29 ||   ||

|| || || Dale is 4 years older than Chip. The product of their ages is 252. How old is Dale? || ||


 * ||  ||   || **A.** || 10 ||   ||
 * ||  ||   || **B.** || 22 ||   ||
 * || Answered Correct: ||  ||   || **C.** || 18 ||   ||
 * ||  ||   || **D.** || 14 ||   ||

|| || || In which direction must the graph of f(x) = x2 be shifted to produce the graph of g(x) = x2 - 5? || ||


 * ||  ||   || **A.** || up ||   ||
 * ||  ||   || **B.** || left ||   ||
 * || Answered Incorrect: ||  ||   || **C.** || right ||   ||
 * || Correct Answer: ||  ||   || **D.** || down ||   ||

|| || || If the graph of f(x) = x2 is shifted down 4 units, then what would be the equation of the new graph? || ||


 * || Answered Incorrect: ||  ||   || **A.** || g(x) = (x - 4)2 ||   ||
 * || Correct Answer: ||  ||   || **B.** || g(x) = x2 - 4 ||   ||
 * ||  ||   || **C.** || g(x) = x2 + 4 ||   ||
 * ||  ||   || **D.** || g(x) = (x + 4)2 ||   ||

|| || || If the graph of the function y = x2 was to be reflected across the x-axis, what equation would correctly describe the new function? || ||


 * || Answered Incorrect: ||  ||   || **A.** || y = x2 - 1 ||   ||
 * ||  ||   || **B.** || y = [[image:http://www91.studyisland.com/userfiles/sqrt.gif]]x ||   ||
 * || Correct Answer: ||  ||   || **C.** || y = -x2 ||   ||
 * ||  ||   || **D.** || y = x-2 ||   ||

All Questions ||
 * || **Report:** ||
 * || **Report:** ||
 * **Program:** || **Algebra II**  ||
 * **Test:** || **Working With Quadratics**  ||
 * **User:** || **Baker, Alicia**  ||
 * **Session Date:** || **03/03/11 - 11:11 AM CST**  ||
 * **% Correct:** || **(13/33) 39.4%**  ||
 * **Correct Questions:** || **13**  ||
 * **Missed Questions:** || **20**  ||   ||

||  ||   || 14x + 6 = -4x2 Will the graph of the equation above intersect the x-axis in zero, one, or two points?
 * View Missed | View Correct | View All ||

(//Use the quadratic formula to help you answer this question.//) ||  ||


 * || Correct Answer: ||  ||   || **A.** || two ||   ||
 * ||  ||   || **B.** || zero ||   ||
 * || Answered Incorrect: ||  ||   || **C.** || There is not enough information. ||   ||
 * ||  ||   || **D.** || one ||   ||

|| || What are the x-intercepts of the graph of the equation above? ||  ||
 * y = x2 + 7x + 10


 * || Correct Answer: ||  ||   || **A.** || (-2, 0) and (-5, 0) ||   ||
 * ||  ||   || **B.** || (2, 0) and (-5, 0) ||   ||
 * ||  ||   || **C.** || (-2, 0) and (5, 0) ||   ||
 * || Answered Incorrect: ||  ||   || **D.** || (2, 0) and (5, 0) ||   ||

|| || //M// = //x//2 - 5//x// + 286 If Vincente gained $300, how long did he have his money in the mutual fund? ||  ||
 * Vincente put his money into a mutual fund, where the amount of money he earned or lost can be found using the equation below, where //M// is the money Vincente earned or lost and //x// is time in years.


 * ||  ||   || **A.** || 2 years ||   ||
 * || Correct Answer: ||  ||   || **B.** || 7 years ||   ||
 * || Answered Incorrect: ||  ||   || **C.** || 6 years ||   ||
 * ||  ||   || **D.** || 8 years ||   ||

|| || Will the graph of the equation above intersect the x-axis in zero, one, or two points?
 * 1x2 + 2x = -1

(//Use the quadratic formula to help you answer this question.//) ||  ||


 * ||  ||   || **A.** || zero ||   ||
 * || Answered Incorrect: ||  ||   || **B.** || two ||   ||
 * ||  ||   || **C.** || There is not enough information. ||   ||
 * || Correct Answer: ||  ||   || **D.** || one ||   ||

|| ||
 * A quadratic equation is written in 4 equivalent forms below.
 * 1) y = x2 + 10x + 24
 * 2) y = (x + 4)(x + 6)
 * 3) y = (x + 5)2 - 1
 * 4) y = x(x + 10) + 24

Which of the forms shown above would be the most useful if attempting to find the x-intercepts of the quadratic equation? ||  ||


 * || Answered Correct: ||  ||   || **A.** || II. ||   ||
 * ||  ||   || **B.** || IV. ||   ||
 * ||  ||   || **C.** || I. ||   ||
 * ||  ||   || **D.** || III. ||   ||

|| ||
 * If the graph of f(x) = x2 is shifted 4 units to the right, then what would be the equation of the new graph? ||  ||


 * || Correct Answer: ||  ||   || **A.** || g(x) = (x - 4)2 ||   ||
 * ||  ||   || **B.** || g(x) = x2 - 4 ||   ||
 * || Answered Incorrect: ||  ||   || **C.** || g(x) = x2 + 4 ||   ||
 * ||  ||   || **D.** || g(x) = (x + 4)2 ||   ||

|| || Which of the following tables matches the equation shown above? ||  || **x** || **y** ||
 * y = x2 - 16
 * -1 || -15 ||
 * 0 || -16 ||
 * 1 || -15 ||
 * 2 || 20 ||  ||   ||   || **x** || **y** ||
 * -1 || -12 ||
 * 0 || -16 ||
 * 1 || -12 ||
 * 2 || -12 ||  ||   ||   || **x** || **y** ||
 * -1 || -13 ||
 * 0 || -19 ||
 * 1 || -13 ||
 * 2 || -12 ||  ||   ||   || **x** || **y** ||
 * -1 || -15 ||
 * 0 || -16 ||
 * 1 || -15 ||
 * 2 || -12 ||  ||
 * **W** ||  || **X** ||   || **Y** ||   || **Z** ||   ||   ||


 * ||  ||   || **A.** || Y ||   ||
 * || Answered Correct: ||  ||   || **B.** || Z ||   ||
 * ||  ||   || **C.** || W ||   ||
 * ||  ||   || **D.** || X ||   ||

|| || by the function y = -2x2 + 9x + 1? ||  ||
 * What is the x-coordinate of the vertex for the parabola defined


 * ||  ||   || **A.** || 1/9 ||   ||
 * ||  ||   || **B.** || -9 ||   ||
 * || Answered Incorrect: ||  ||   || **C.** || -9/4 ||   ||
 * || Correct Answer: ||  ||   || **D.** || 9/4 ||   ||

|| || What are the x-intercepts of the graph of the equation above? ||  ||
 * y = x2 + 3x - 10


 * ||  ||   || **A.** || (-5, 0) and (-2, 0) ||   ||
 * || Correct Answer: ||  ||   || **B.** || (-5, 0) and (2, 0) ||   ||
 * ||  ||   || **C.** || (5, 0) and (2, 0) ||   ||
 * || Answered Incorrect: ||  ||   || **D.** || (5, 0) and (-2, 0) ||   ||

|| || function //f(x)// = 3//x//2 + 18//x// - 2? ||  ||
 * What is the equation for the axis of symmetry of the quadratic


 * || Correct Answer: ||  ||   || **A.** || //x// = -3 ||   ||
 * || Answered Incorrect: ||  ||   || **B.** || //x// = 3 ||   ||
 * ||  ||   || **C.** || //x// = -6 ||   ||
 * ||  ||   || **D.** || //x// = -2 ||   ||

|| ||
 * 2x2 - 1x = -3

Will the graph of the equation above intersect the x-axis in zero, one, or two points?

(//Use the quadratic formula to help you answer this question.//) ||  ||


 * || Answered Incorrect: ||  ||   || **A.** || two ||   ||
 * ||  ||   || **B.** || one ||   ||
 * ||  ||   || **C.** || There is not enough information. ||   ||
 * || Correct Answer: ||  ||   || **D.** || zero ||   ||

|| || Which of the following equations matches the table shown above?
 * || **x** || **y** ||
 * -1 || -21 ||
 * 0 || -24 ||
 * 1 || -25 ||
 * 2 || -24 ||
 * 3 || -21 ||


 * || Answered Correct: ||  ||   || **A.** || //y// = //x//2 - 2//x// - 24 ||   ||
 * ||  ||   || **B.** || //y// = -2//x// - 23 ||   ||
 * ||  ||   || **C.** || //y// = //x//3 - 21 ||   ||
 * ||  ||   || **D.** || //y// = //x2 + 2//x //- 24// ||   ||

|| || Will the parabola of this equation open upward or downward? ||  ||
 * y = 5x2 + 8x + 12


 * ||  ||   || **A.** || There is not enough information. ||   ||
 * ||  ||   || **B.** || downward ||   ||
 * || Answered Correct: ||  ||   || **C.** || upward ||   ||

|| || //h//(//t//) = -16//t//2 + 32//t// After how many seconds will the ball hit the ground? ||  ||
 * A kicker kicks a football during practice. The equation below can be used to find the height (//h//) in feet of the football after //t// seconds.


 * ||  ||   || **A.** || 3 ||   ||
 * ||  ||   || **B.** || 1 ||   ||
 * ||  ||   || **C.** || 32 ||   ||
 * || Answered Correct: ||  ||   || **D.** || 2 ||   ||

|| ||
 * Clay built a dog pen based on the diagram below. The diagram is not drawn to scale. ||  || A = 98 m2 ||   || //x// - 3 ||
 * //x// + 4 ||  ||

What are the dimensions of the dog pen?


 * ||  ||   || **A.** || 4 m by 3 m ||   ||
 * ||  ||   || **B.** || 10 m by 11 m ||   ||
 * ||  ||   || **C.** || 49 m by 2 m ||   ||
 * || Answered Correct: ||  ||   || **D.** || 14 m by 7 m ||   ||

|| || Which of the following equations fits this graph? ||  ||
 * [[image:http://www91.studyisland.com/includes/assessment/userfiles/graphquad3.gif]]


 * ||  ||   || **A.** || y = 2x2 + 4x + 1 ||   ||
 * ||  ||   || **B.** || y = 2x2 + 2x - 1 ||   ||
 * || Correct Answer: ||  ||   || **C.** || y = -2x2 + 4x + 1 ||   ||
 * || Answered Incorrect: ||  ||   || **D.** || y = -2x2 + x + 1 ||   ||

|| || What are the x-intercepts of the graph of the equation above? ||  ||
 * y = x2 + 3x - 10


 * ||  ||   || **A.** || (5, 0) and (2, 0) ||   ||
 * || Answered Incorrect: ||  ||   || **B.** || (5, 0) and (-2, 0) ||   ||
 * ||  ||   || **C.** || (-5, 0) and (-2, 0) ||   ||
 * || Correct Answer: ||  ||   || **D.** || (-5, 0) and (2, 0) ||   ||

|| ||
 * Annalise, Torah, and Samantha are cousins. Annalise is 2 years older than Torah, and Samantha is 2 years older than Annalise. If the product of Annalise's and Samantha's ages is 224, how old is Annalise? ||  ||


 * ||  ||   || **A.** || 26 ||   ||
 * || Answered Correct: ||  ||   || **B.** || 14 ||   ||
 * ||  ||   || **C.** || 16 ||   ||
 * ||  ||   || **D.** || 12 ||   ||

|| ||
 * In which direction must the graph of f(x) = x2 be shifted to produce the graph of g(x) = (x - 5)2? ||  ||


 * ||  ||   || **A.** || down ||   ||
 * || Answered Incorrect: ||  ||   || **B.** || left ||   ||
 * || Correct Answer: ||  ||   || **C.** || right ||   ||
 * ||  ||   || **D.** || up ||   ||

|| || Which of the following equations fits this graph? ||  ||
 * [[image:http://www91.studyisland.com/includes/assessment/userfiles/graphquad4.gif]]


 * ||  ||   || **A.** || y = 2x2 + 4x - 3 ||   ||
 * || Answered Incorrect: ||  ||   || **B.** || y = x2 - x - 3 ||   ||
 * ||  ||   || **C.** || y = x2 + 2x + 3 ||   ||
 * || Correct Answer: ||  ||   || **D.** || y = x2 + 2x - 3 ||   ||

|| ||
 * Which of the following represents the equation of a parabola that opens down and is narrower than the graph of //y// = //x//2? ||  ||


 * ||  ||   || **A.** || [[image:http://media.studyisland.com/cgi-bin/mimetex.cgi?y%5C%20=%5C%20%5Cfrac%7B1%7D%7B4%7Dx%5E%7B2%7D%5C%20-%5C%205x%5C%20+%5C%2015]] ||   ||
 * || Answered Correct: ||  ||   || **B.** || [[image:http://media.studyisland.com/cgi-bin/mimetex.cgi?y%5C%20=%5C%20-4x%5E%7B2%7D%5C%20+%5C%205x%5C%20+%5C%2015]] ||   ||
 * ||  ||   || **C.** || [[image:http://media.studyisland.com/cgi-bin/mimetex.cgi?y%5C%20=%5C%204x%5E%7B2%7D%5C%20-%5C%205x%5C%20+%5C%2015]] ||   ||
 * ||  ||   || **D.** || [[image:http://media.studyisland.com/cgi-bin/mimetex.cgi?y%5C%20=%5C%20-%5Cfrac%7B1%7D%7B4%7Dx%5E%7B2%7D%5C%20+%5C%205x%5C%20+%5C%2015]] ||   ||

|| || Will the parabola of this equation open upward or downward? ||  ||
 * y = -1x2 + 9x + 18


 * || Answered Correct: ||  ||   || **A.** || downward ||   ||
 * ||  ||   || **B.** || There is not enough information. ||   ||
 * ||  ||   || **C.** || upward ||   ||

|| || What are the x-intercepts of the graph of the equation above? ||  ||
 * y = x2 + 7x + 10


 * || Correct Answer: ||  ||   || **A.** || (-2, 0) and (-5, 0) ||   ||
 * || Answered Incorrect: ||  ||   || **B.** || (2, 0) and (5, 0) ||   ||
 * ||  ||   || **C.** || (-2, 0) and (5, 0) ||   ||
 * ||  ||   || **D.** || (2, 0) and (-5, 0) ||   ||

|| || The curve given by the equation //y// = 2//x//2 - 2 is graphed above. How will the graph of the equation be affected if the equation is changed to //y// = -2//x//2 - 2? ||  ||
 * [[image:http://media.studyisland.com/fGraphs/004889C5924AF39264F985496E6F93E6.png]]


 * ||  ||   || **A.** || The graph will be wider. ||   ||
 * ||  ||   || **B.** || The graph will be shifted down. ||   ||
 * || Answered Correct: ||  ||   || **C.** || The graph will open down. ||   ||
 * ||  ||   || **D.** || The graph will be the same. ||   ||

|| ||
 * A quadratic equation is written in 4 equivalent forms below.
 * 1) y = x2 + 10x + 24
 * 2) y = (x + 4)(x + 6)
 * 3) y = (x + 5)2 - 1
 * 4) y = x(x + 4) + 6(x + 4)

Which of the forms shown above would be the most useful if attempting to find the y-intercept of the quadratic equation? ||  ||


 * ||  ||   || **A.** || IV. ||   ||
 * || Answered Correct: ||  ||   || **B.** || I. ||   ||
 * ||  ||   || **C.** || II. ||   ||
 * ||  ||   || **D.** || III. ||   ||

|| || The curve given by the equation //y// = 2//x//2 - 2 is graphed above. How will the graph of the equation be affected if the equation is changed to //y// = 2//x//2 + 3? ||  ||
 * [[image:http://media.studyisland.com/fGraphs/004889C5924AF39264F985496E6F93E6.png]]


 * ||  ||   || **A.** || The graph will be the same. ||   ||
 * || Answered Incorrect: ||  ||   || **B.** || The graph will be wider. ||   ||
 * || Correct Answer: ||  ||   || **C.** || The graph will be shifted up. ||   ||
 * ||  ||   || **D.** || The graph will be shifted down. ||   ||

|| || Will the graph of the equation above intersect the x-axis in zero, one, or two points?
 * y = x2 + 2x - 8

(//Use factoring to help you answer this question.//) ||  ||


 * ||  ||   || **A.** || zero ||   ||
 * || Correct Answer: ||  ||   || **B.** || two ||   ||
 * ||  ||   || **C.** || one ||   ||
 * || Answered Incorrect: ||  ||   || **D.** || There is not enough information. ||   ||

|| ||
 * A quadratic equation is written in 4 equivalent forms below.
 * 1) y = x2 + 10x + 24
 * 2) y = (x + 4)(x + 6)
 * 3) y = (x + 5)2 - 1
 * 4) y = x(x + 10) + 24

Which of the forms shown above would be the most useful if attempting to find the vertex of the quadratic equation? ||  ||


 * || Answered Incorrect: ||  ||   || **A.** || II. ||   ||
 * ||  ||   || **B.** || I. ||   ||
 * ||  ||   || **C.** || IV. ||   ||
 * || Correct Answer: ||  ||   || **D.** || III. ||   ||

|| ||
 * Phil hit 9 more home runs than Charlie did last season. The product of their home runs from last season is 220. How many home runs did Charlie hit last season? ||  ||


 * ||  ||   || **A.** || 211 ||   ||
 * ||  ||   || **B.** || 20 ||   ||
 * || Answered Correct: ||  ||   || **C.** || 11 ||   ||
 * ||  ||   || **D.** || 29 ||   ||

|| ||
 * Dale is 4 years older than Chip. The product of their ages is 252. How old is Dale? ||  ||


 * ||  ||   || **A.** || 10 ||   ||
 * ||  ||   || **B.** || 22 ||   ||
 * || Answered Correct: ||  ||   || **C.** || 18 ||   ||
 * ||  ||   || **D.** || 14 ||   ||

|| ||
 * In which direction must the graph of f(x) = x2 be shifted to produce the graph of g(x) = x2 - 5? ||  ||


 * ||  ||   || **A.** || up ||   ||
 * ||  ||   || **B.** || left ||   ||
 * || Answered Incorrect: ||  ||   || **C.** || right ||   ||
 * || Correct Answer: ||  ||   || **D.** || down ||   ||

|| ||
 * If the graph of f(x) = x2 is shifted down 4 units, then what would be the equation of the new graph? ||  ||


 * || Answered Incorrect: ||  ||   || **A.** || g(x) = (x - 4)2 ||   ||
 * || Correct Answer: ||  ||   || **B.** || g(x) = x2 - 4 ||   ||
 * ||  ||   || **C.** || g(x) = x2 + 4 ||   ||
 * ||  ||   || **D.** || g(x) = (x + 4)2 ||   ||

|| ||
 * If the graph of the function y = x2 was to be reflected across the x-axis, what equation would correctly describe the new function? ||  ||


 * || Answered Incorrect: ||  ||   || **A.** || y = x2 - 1 ||   ||
 * ||  ||   || **B.** || y = [[image:http://www91.studyisland.com/userfiles/sqrt.gif]]x ||   ||
 * || Correct Answer: ||  ||   || **C.** || y = -x2 ||   ||
 * ||  ||   || **D.** || y = x-2 ||   ||