sage+moist+-+practice+test+-+quadratics

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 * || **Report:** || **All Questions**
 * **Program:** || **Algebra II**  ||
 * **Test:** || **Practice Test - QUADRATICS!**  ||
 * **User:** || **Moist, Sage**  ||
 * **Session Date:** || **03/14/11 - 11:04 AM CST**  ||
 * **% Correct:** || **(5/15) 33.3%**  ||
 * **Correct Questions:** || **5**  ||
 * **Missed Questions:** || **10**  ||   ||

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


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

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

|| || || In which direction must the graph of f(x) = x2 be shifted to produce the graph of g(x) = x2 + 9? || ||


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

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


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

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


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

|| || || What is the equation for the axis of symmetry of the quadratic function //f(x)// = 5//x//2 + 30//x// - 18? || ||


 * ||  ||   || **A.** || //x// = 5 ||   ||
 * ||  ||   || **B.** || //x// = 3 ||   ||
 * || Answered Incorrect: ||  ||   || **C.** || //x// = -6 ||   ||
 * || Correct Answer: ||  ||   || **D.** || //x// = -3 ||   ||

|| || || 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? || ||


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

|| || || y = 4x2 + 12x + 32 Will the parabola of this equation open upward or downward? || ||


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

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


 * || Correct Answer: ||  ||   || **A.** || //y// = //x//2 + 2//x// - 80 ||   ||
 * ||  ||   || **B.** || //y// = 2//x// - 71 ||   ||
 * || Answered Incorrect: ||  ||   || **C.** || //y// = //x2 - 2//x //- 80// ||   ||
 * ||  ||   || **D.** || //y// = //x//3 - 77 ||   ||

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


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

|| || || In which direction must the graph of f(x) = x2 be shifted to produce the graph of g(x) = (x + 9)2? || ||


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

|| || || If the graph of f(x) = x2 is shifted up 8 units, then what would be the equation of the new graph? || ||


 * || Correct Answer: ||  ||   || **A.** || g(x) = x2 + 8 ||   ||
 * || Answered Incorrect: ||  ||   || **B.** || g(x) = (x + 8)2 ||   ||
 * ||  ||   || **C.** || g(x) = (x - 8)2 ||   ||
 * ||  ||   || **D.** || g(x) = x2 - 8 ||   ||

|| || || y = x2 - 64 Which of the following tables matches the equation shown above? || || **x** || **y** ||
 * -1 || -60 ||
 * 0 || -64 ||
 * 1 || -60 ||
 * 2 || -60 ||  ||   ||   || **x** || **y** ||
 * -1 || -61 ||
 * 0 || -67 ||
 * 1 || -61 ||
 * 2 || -60 ||  ||   ||   || **x** || **y** ||
 * -1 || -63 ||
 * 0 || -64 ||
 * 1 || -63 ||
 * 2 || -60 ||  ||   ||   || **x** || **y** ||
 * -1 || -63 ||
 * 0 || -64 ||
 * 1 || -63 ||
 * 2 || 68 ||  ||
 * **W** ||  || **X** ||   || **Y** ||   || **Z** ||   ||   ||


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

|| || || What is the x-coordinate of the vertex for the parabola defined by the function y = 5x2 + 8x + 9? || ||


 * ||  ||   || **A.** || 4/5 ||   ||
 * ||  ||   || **B.** || -8 ||   ||
 * || Answered Correct: ||  ||   || **C.** || -4/5 ||   ||
 * ||  ||   || **D.** || -5/16 ||   ||

|| || || If the graph of f(x) = x2 is shifted 8 units to the left, then what would be the equation of the new graph? || ||


 * ||  ||   || **A.** || g(x) = (x - 8)2 ||   ||
 * ||  ||   || **B.** || g(x) = x2 + 8 ||   ||
 * || Answered Incorrect: ||  ||   || **C.** || g(x) = x2 - 8 ||   ||
 * || Correct Answer: ||  ||   || **D.** || g(x) = (x + 8)2 ||   ||