Chelsea+Hagans+-+Practice+Test+-+Quadratics


 * || **Report:** || **All Questions
 * **Program:** || **Algebra II**  ||
 * **Test:** || **Practice Test - QUADRATICS!**  ||
 * **User:** || **Hagans, Chelsea**  ||
 * **Session Date:** || **03/11/11 - 11:06 AM CST**  ||
 * **% Correct:** || **(8/15) 53.3%**  ||
 * **Correct Questions:** || **8**  ||
 * **Missed Questions:** || **7**  || ||
 * **Missed Questions:** || **7**  || ||

The curve given by the equation //y// = 3//x//2 - 3 is graphed above. How will the graph of the equation be affected if the equation is changed to //y// = -3//x//2 - 3? || ||
 * View Missed | View Correct | View All ||
 * || ||  || [[image:http://media.studyisland.com/fGraphs/FD755AEF17DDE858F7BB829617BF716A.png]]
 * || ||  || [[image:http://media.studyisland.com/fGraphs/FD755AEF17DDE858F7BB829617BF716A.png]]


 * || || || **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 open down. || ||

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


 * || Correct Answer: || || || **A.** || y = -x2 || ||
 * || || || **B.** || y = x-2 || ||
 * || || || **C.** || y = [[image:http://www65.studyisland.com/userfiles/sqrt.gif]]x || ||
 * || Answered Incorrect: || || || **D.** || y = x2 - 1 || ||

|| ||  || 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.//) || ||


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

|| ||  || What is the x-coordinate of the vertex for the parabola defined by the function y = 4x2 + 8x + 8? || ||


 * || || || **A.** || 1 || ||
 * || || || **B.** || -8 || ||
 * || Answered Correct: || || || **C.** || -1 || ||
 * || || || **D.** || -1/4 || ||

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


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

|| ||  || || **x** || **y** || Which of the following equations matches the table shown above? || ||
 * -1 || -77 ||
 * 0 || -80 ||
 * 1 || -81 ||
 * 2 || -80 ||
 * 3 || -77 ||


 * || || || **A.** || //y// = //x2 + 2//x// - 80// || ||
 * || Answered Correct: || || || **B.** || //y// = //x//2 - 2//x// - 80 || ||
 * || || || **C.** || //y// = //x//3 - 77 || ||
 * || || || **D.** || //y// = -2//x// - 79 || ||

|| ||  || In which direction must the graph of f(x) = x2 be shifted to produce the graph of g(x) = (x + 8)2? || ||


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

|| ||  || In which direction must the graph of f(x) = x2 be shifted to produce the graph of g(x) = x2 + 8? || ||


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

|| ||  || y = x2 + 10x + 21 What are the x-intercepts of the graph of the equation above? || ||


 * || || || **A.** || (3, 0) and (-7, 0) || ||
 * || Answered Correct: || || || **B.** || (-3, 0) and (-7, 0) || ||
 * || || || **C.** || (-3, 0) and (7, 0) || ||
 * || || || **D.** || (3, 0) and (7, 0) || ||

|| ||  || If the graph of f(x) = x2 is shifted up 7 units, then what would be the equation of the new graph? || ||


 * || || || **A.** || g(x) = x2 - 7 || ||
 * || Correct Answer: || || || **B.** || g(x) = x2 + 7 || ||
 * || Answered Incorrect: || || || **C.** || g(x) = (x + 7)2 || ||
 * || || || **D.** || g(x) = (x - 7)2 || ||

|| ||  || y = x2 - 2x - 48 Which of the following tables matches the equation shown above? || || **x** || **y** ||
 * 0 || -41 ||
 * 1 || -49 ||
 * 2 || -41 ||
 * 3 || -45 || ||  || || **x** || **y** ||
 * 0 || -46 ||
 * 1 || -52 ||
 * 2 || -46 ||
 * 3 || -45 || ||  || || **x** || **y** ||
 * 0 || -48 ||
 * 1 || -49 ||
 * 2 || -48 ||
 * 3 || -45 || ||  || || **x** || **y** ||
 * 0 || -48 ||
 * 1 || -49 ||
 * 2 || -48 ||
 * 3 || 51 || ||
 * **W** ||  || **X** ||   || **Y** ||   || **Z** || || ||


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

|| ||  || y = 4x2 + 11x + 24 Will the parabola of this equation open upward or downward? || ||


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

|| ||  || If the graph of f(x) = x2 is shifted 7 units to the left, then what would be the equation of the new graph? || ||


 * || Correct Answer: || || || **A.** || g(x) = (x + 7)2 || ||
 * || || || **B.** || g(x) = x2 - 7 || ||
 * || || || **C.** || g(x) = (x - 7)2 || ||
 * || Answered Incorrect: || || || **D.** || g(x) = x2 + 7 || ||

|| ||  || y = -2x2 + 11x + 28 Will the parabola of this equation open upward or downward? || ||


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

|| ||  || What is the equation for the axis of symmetry of the quadratic function //f(x)// = 4//x//2 + 24//x// - 16? || ||


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

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