christian+weller+-+practice+test+-+quadratics


 * || **Report:** || **All Questions
 * **Program:** || **Algebra II**  ||
 * **Test:** || **Practice Test - QUADRATICS!**  ||
 * **User:** || **Weller, Christian**  ||
 * **Session Date:** || **03/11/11 - 11:00 AM CST**  ||
 * **% Correct:** || **(12/15) 80.0%**  ||
 * **Correct Questions:** || **12**  ||
 * **Missed Questions:** || **3**  || ||
 * **Missed Questions:** || **3**  || ||

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? || ||
 * View Missed | View Correct | View All ||
 * || ||  || [[image:http://media.studyisland.com/fGraphs/013DFAC455A51579A3C6B30F8F3C62F6.png]]
 * || ||  || [[image:http://media.studyisland.com/fGraphs/013DFAC455A51579A3C6B30F8F3C62F6.png]]


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

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


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

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


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

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


 * || || || **A.** || //x// = -4 || ||
 * || Correct Answer: || || || **B.** || //x// = -2 || ||
 * || || || **C.** || //x// = 2 || ||
 * || Answered Incorrect: || || || **D.** || //x// = 4 || ||

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


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

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


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

|| ||  || y = 3x2 + 9x + 18 Will the parabola of this equation open upward or downward? || ||


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

|| ||  || What is the x-coordinate of the vertex for the parabola defined by the function y = -4x2 + 7x + 1? || ||


 * || Answered Incorrect: || || || **A.** || -7/8 || ||
 * || || || **B.** || 2/7 || ||
 * || || || **C.** || -7 || ||
 * || Correct Answer: || || || **D.** || 7/8 || ||

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


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

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

|| ||  || y = x2 + 2x - 24 Which of the following tables matches the equation shown above? || || **x** || **y** ||
 * -2 || -22 ||
 * -1 || -28 ||
 * 0 || -22 ||
 * 1 || -21 || ||  || || **x** || **y** ||
 * -2 || -24 ||
 * -1 || -25 ||
 * 0 || -24 ||
 * 1 || -21 || ||  || || **x** || **y** ||
 * -2 || -24 ||
 * -1 || -25 ||
 * 0 || -24 ||
 * 1 || 27 || ||  || || **x** || **y** ||
 * -2 || -25 ||
 * -1 || -25 ||
 * 0 || -25 ||
 * 1 || -21 || ||
 * **W** ||  || **X** ||   || **Y** ||   || **Z** || || ||


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

|| ||  || y = x2 + 8x + 15 What are the x-intercepts of the graph of the equation above? || ||


 * || || || **A.** || (3, 0) and (-5, 0) || ||
 * || || || **B.** || (-3, 0) and (5, 0) || ||
 * || || || **C.** || (3, 0) and (5, 0) || ||
 * || Answered Correct: || || || **D.** || (-3, 0) and (-5, 0) || ||

|| ||  || || **x** || **y** || Which of the following equations matches the table shown above? || ||
 * -4 || -32 ||
 * -3 || -35 ||
 * -2 || -36 ||
 * -1 || -35 ||
 * 0 || -32 ||


 * || Answered Correct: || || || **A.** || //y// = //x//2 + 4//x// - 32 || ||
 * || || || **B.** || //y// = //x//3 - 32 || ||
 * || || || **C.** || //y// = 4//x// - 16 || ||
 * || || || **D.** || //y// = //x2 - 4//x// - 32// || ||

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

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

|| ||  || y = -3x2 + 10x + 24 Will the parabola of this equation open upward or downward? || ||


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

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