Nik+Smith+-+practice+test+-+quadratics


 * || **Report:** || **All Questions** ||
 * **Program:** || **Algebra II** ||
 * **Test:** || **Practice Test - QUADRATICS!** ||
 * **User:** || **SMITH, NIKOLAS** ||
 * **Session Date:** || **03/11/11 - 11:07 AM CST** ||
 * **% Correct:** || **(7/15) 46.7%** ||
 * **Correct Questions:** || **7** ||
 * **Missed Questions:** || **8** ||  ||

Will the parabola of this equation open upward or downward? ||  ||
 * View Missed | View Correct | View All ||
 * ||  ||   || y = -2x2 + 8x + 12
 * ||  ||   || y = -2x2 + 8x + 12


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

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


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


 * ||  || 2x2 - 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.** || two ||   ||
 * || Answered Incorrect: ||  ||   || **B.** || There is not enough information. ||   ||
 * ||  ||   || **C.** || one ||   ||
 * || 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 ||


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

Which of the following tables matches the equation shown above? ||  || **x** || **y** ||
 * ||  || y = x2 - 2x - 24
 * 0 || -17 ||
 * 1 || -25 ||
 * 2 || -17 ||
 * 3 || -21 ||  ||   ||   || **x** || **y** ||
 * 0 || -22 ||
 * 1 || -28 ||
 * 2 || -22 ||
 * 3 || -21 ||  ||   ||   || **x** || **y** ||
 * 0 || -24 ||
 * 1 || -25 ||
 * 2 || -24 ||
 * 3 || -21 ||  ||   ||   || **x** || **y** ||
 * 0 || -24 ||
 * 1 || -25 ||
 * 2 || -24 ||
 * 3 || 27 ||  ||
 * **W** ||  || **X** ||   || **Y** ||   || **Z** ||   ||   ||


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

Will the parabola of this equation open upward or downward? ||  ||
 * ||  || y = 4x2 + 9x + 14


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


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


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

by the function y = 2x2 + 8x + 9? ||  ||
 * ||  || What is the x-coordinate of the vertex for the parabola defined


 * || Answered Incorrect: ||  ||   || **A.** || -1/8 ||   ||
 * || Correct Answer: ||  ||   || **B.** || -2 ||   ||
 * ||  ||   || **C.** || -8 ||   ||
 * ||  ||   || **D.** || 2 ||   ||


 * ||  || [[image:http://media.studyisland.com/fGraphs/004889C5924AF39264F985496E6F93E6.png align="center"]]

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? ||  ||


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


 * ||  || [[image:http://www65.studyisland.com/includes/assessment/userfiles/graphquad3.gif align="center"]]

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


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

What are the x-intercepts of the graph of the equation above? ||  ||
 * ||  || y = x2 + 7x + 6


 * ||  ||   || **A.** || (1, 0) and (-6, 0) ||   ||
 * || Answered Incorrect: ||  ||   || **B.** || (-1, 0) and (6, 0) ||   ||
 * ||  ||   || **C.** || (1, 0) and (6, 0) ||   ||
 * || Correct Answer: ||  ||   || **D.** || (-1, 0) and (-6, 0) ||   ||


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


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


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


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


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


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


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