Chapin


 * || **Report:** || **All Questions** ||
 * **Program:** || **Algebra II** ||
 * **Test:** || **Working With Quadratics** ||
 * **User:** || **GUILIANTE, CHAPIN** ||
 * **Session Date:** || **03/03/11 - 12:06 PM EST** ||
 * **% Correct:** || **(22/33) 66.7%** ||
 * **Correct Questions:** || **22** ||
 * **Missed Questions:** || **11** ||  ||

What are the x-intercepts of the graph of the equation above? ||  ||
 * View Missed | View Correct | View All ||
 * ||  ||   || y = x2 + 8x + 12
 * ||  ||   || y = x2 + 8x + 12


 * ||  ||   || **A.** || (2, 0) and (6, 0) ||   ||
 * || Answered Correct: ||  ||   || **B.** || (-2, 0) and (-6, 0) ||   ||
 * ||  ||   || **C.** || (2, 0) and (-6, 0) ||   ||
 * ||  ||   || **D.** || (-2, 0) and (6, 0) ||   ||


 * || || A quadratic equation is written in 4 equivalent forms below. # y = x(x + 6) - 8(x + 6)
 * 1) y = (x - 1)2 - 49
 * 2) y = x2 - 2x - 48
 * 3) y = (x + 6)(x - 8)

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


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


 * || || Clay built a dog pen based on the diagram below. The diagram is not drawn to scale.||  || A = 112 m2 ||   || //x// - 3 ||
 * //x// + 6 ||  ||

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


 * || Answered Incorrect: ||  ||   || **A.** || 10 m by 13 m ||   ||
 * ||  ||   || **B.** || 56 m by 2 m ||   ||
 * ||  ||   || **C.** || 6 m by 3 m ||   ||
 * || Correct Answer: ||  ||   || **D.** || 16 m by 7 m ||   ||


 * || || 3x2 - 2x = -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.//) || ||


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

Will the graph of the equation above intersect the x-axis in zero, one, or two points?
 * || || 2x2 + 4x = -2

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


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


 * || || In which direction must the graph of f(x) = x2 be shifted to produce the graph of g(x) = x2 + 6? || ||


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


 * || || [[image:http://media.studyisland.com/fGraphs/013DFAC455A51579A3C6B30F8F3C62F6.png]]

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


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

Will the graph of the equation above intersect the x-axis in zero, one, or two points?
 * || || 20x + 4 = -8x2

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


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

What are the x-intercepts of the graph of the equation above? || ||
 * || || y = x2 + 4x - 12


 * ||  ||   || **A.** || (6, 0) and (2, 0) ||   ||
 * || Answered Correct: ||  ||   || **B.** || (-6, 0) and (2, 0) ||   ||
 * ||  ||   || **C.** || (-6, 0) and (-2, 0) ||   ||
 * ||  ||   || **D.** || (6, 0) and (-2, 0) ||   ||


 * || || Phil hit 9 more home runs than Charlie did last season. The product of their home runs from last season is 252. How many home runs did Charlie hit last season? || ||


 * ||  ||   || **A.** || 30 ||   ||
 * ||  ||   || **B.** || 243 ||   ||
 * || Answered Correct: ||  ||   || **C.** || 12 ||   ||
 * ||  ||   || **D.** || 21 ||   ||

Which of the following equations fits this graph? || ||
 * || || [[image:http://www66.studyisland.com/includes/assessment/userfiles/graphquad3.gif]]


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


 * || || 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%206x%5C%20+%5C%2015]] ||   ||
 * || Answered Incorrect: ||  ||   || **B.** || [[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%206x%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%206x%5C%20+%5C%2015]] ||   ||
 * || Correct Answer: ||  ||   || **D.** || [[image:http://media.studyisland.com/cgi-bin/mimetex.cgi?y%5C%20=%5C%20-4x%5E%7B2%7D%5C%20+%5C%206x%5C%20+%5C%2015]] ||   ||

What are the x-intercepts of the graph of the equation above? || ||
 * || || y = x2 + 8x + 12


 * ||  ||   || **A.** || (2, 0) and (6, 0) ||   ||
 * ||  ||   || **B.** || (-2, 0) and (6, 0) ||   ||
 * || Answered Correct: ||  ||   || **C.** || (-2, 0) and (-6, 0) ||   ||
 * ||  ||   || **D.** || (2, 0) and (-6, 0) ||   ||


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


 * ||  ||   || **A.** || y = [[image:http://www66.studyisland.com/userfiles/sqrt.gif]]x ||   ||
 * || Answered Incorrect: ||  ||   || **B.** || y = x2 - 1 ||   ||
 * ||  ||   || **C.** || y = x-2 ||   ||
 * || Correct Answer: ||  ||   || **D.** || y = -x2 ||   ||

Which of the following equations matches the table shown above? || ||
 * || || || **x** || **y** ||
 * -1 || -45 ||
 * 0 || -48 ||
 * 1 || -49 ||
 * 2 || -48 ||
 * 3 || -45 ||


 * ||  ||   || **A.** || //y// = //x//3 - 45 ||   ||
 * || Answered Correct: ||  ||   || **B.** || //y// = //x//2 - 2//x// - 48 ||   ||
 * ||  ||   || **C.** || //y// = //x2 + 2//x //- 48// ||   ||
 * ||  ||   || **D.** || //y// = -2//x// - 47 ||   ||

What are the x-intercepts of the graph of the equation above? || ||
 * || || y = x2 + 4x - 12


 * ||  ||   || **A.** || (6, 0) and (2, 0) ||   ||
 * ||  ||   || **B.** || (-6, 0) and (-2, 0) ||   ||
 * || Answered Correct: ||  ||   || **C.** || (-6, 0) and (2, 0) ||   ||
 * ||  ||   || **D.** || (6, 0) and (-2, 0) ||   ||

Will the parabola of this equation open upward or downward? || ||
 * || || y = 5x2 + 10x + 21


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


 * || || If the graph of f(x) = x2 is shifted 6 units to the left, then what would be the equation of the new graph? || ||


 * ||  ||   || **A.** || g(x) = (x - 6)2 ||   ||
 * || Answered Incorrect: ||  ||   || **B.** || g(x) = x2 + 6 ||   ||
 * || Correct Answer: ||  ||   || **C.** || g(x) = (x + 6)2 ||   ||
 * ||  ||   || **D.** || g(x) = x2 - 6 ||   ||


 * || || In which direction must the graph of f(x) = x2 be shifted to produce the graph of g(x) = (x + 6)2? || ||


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


 * || || If the graph of f(x) = x2 is shifted up 6 units, then what would be the equation of the new graph? || ||


 * ||  ||   || **A.** || g(x) = (x - 6)2 ||   ||
 * ||  ||   || **B.** || g(x) = x2 - 6 ||   ||
 * || Correct Answer: ||  ||   || **C.** || g(x) = x2 + 6 ||   ||
 * || Answered Incorrect: ||  ||   || **D.** || g(x) = (x + 6)2 ||   ||


 * || || Annalise, Torah, and Samantha are cousins. Annalise is 3 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.** || 11 ||   ||
 * || Answered Correct: ||  ||   || **B.** || 14 ||   ||
 * ||  ||   || **C.** || 16 ||   ||
 * ||  ||   || **D.** || 25 ||   ||

Which of the following equations fits this graph? || ||
 * || || [[image:http://www66.studyisland.com/includes/assessment/userfiles/graphquad4.gif]]


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

Which of the following tables matches the equation shown above? || || **x** || **y** ||
 * || || y = x2 - 36
 * -1 || -35 ||
 * 0 || -36 ||
 * 1 || -35 ||
 * 2 || 40 ||  ||   ||   || **x** || **y** ||
 * -1 || -32 ||
 * 0 || -36 ||
 * 1 || -32 ||
 * 2 || -32 ||  ||   ||   || **x** || **y** ||
 * -1 || -33 ||
 * 0 || -39 ||
 * 1 || -33 ||
 * 2 || -32 ||  ||   ||   || **x** || **y** ||
 * -1 || -35 ||
 * 0 || -36 ||
 * 1 || -35 ||
 * 2 || -32 ||  ||
 * **W** ||  || **X** ||   || **Y** ||   || **Z** ||   ||   ||


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

by the function y = 3x2 - 9x + 4? || ||
 * || || What is the x-coordinate of the vertex for the parabola defined


 * || Answered Correct: ||  ||   || **A.** || 3/2 ||   ||
 * ||  ||   || **B.** || -3/2 ||   ||
 * ||  ||   || **C.** || 9 ||   ||
 * ||  ||   || **D.** || 1/6 ||   ||

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


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

function //f(x)// = 4//x//2 + 24//x// - 8? || ||
 * || || What is the equation for the axis of symmetry of the quadratic


 * ||  ||   || **A.** || //x// = 3 ||   ||
 * ||  ||   || **B.** || //x// = 4 ||   ||
 * || Answered Correct: ||  ||   || **C.** || //x// = -3 ||   ||
 * ||  ||   || **D.** || //x// = -6 ||   ||


 * || || 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// + 276

If Vincente gained $300, how long did he have his money in the mutual fund? || ||


 * ||  ||   || **A.** || 7 years ||   ||
 * || Answered Correct: ||  ||   || **B.** || 8 years ||   ||
 * ||  ||   || **C.** || 3 years ||   ||
 * ||  ||   || **D.** || 9 years ||   ||


 * || || Dale is 5 years older than Chip. The product of their ages is 336. How old is Dale? || ||


 * ||  ||   || **A.** || 16 ||   ||
 * || Answered Correct: ||  ||   || **B.** || 21 ||   ||
 * ||  ||   || **C.** || 26 ||   ||
 * ||  ||   || **D.** || 11 ||   ||


 * || || [[image:http://media.studyisland.com/fGraphs/013DFAC455A51579A3C6B30F8F3C62F6.png]]

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


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

Will the graph of the equation above intersect the x-axis in zero, one, or two points?
 * || || y = x2 + 3x - 10

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


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


 * || || A quadratic equation is written in 4 equivalent forms below. # y = x(x - 2) - 48
 * 1) y = (x - 1)2 - 49
 * 2) y = x2 - 2x - 48
 * 3) y = (x + 6)(x - 8)

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


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


 * || || 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 ||   ||
 * || Answered Correct: ||  ||   || **B.** || 2 ||   ||
 * ||  ||   || **C.** || 32 ||   ||
 * ||  ||   || **D.** || 0 ||   ||


 * || || A quadratic equation is written in 4 equivalent forms below. # y = x(x - 2) - 48
 * 1) y = (x - 1)2 - 49
 * 2) y = x2 - 2x - 48
 * 3) y = (x + 6)(x - 8)

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


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