practice test 317

Attention - Students should able to use factoring, completing the square and the quadratic formula to find solutions to quadratic equations.

Algebra 2
Practice Quiz 317

Click the circle next to the correct response.
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Solve.

For y = x² + 10x + 24,
6. Which is the location of the vertex? (-5,-1) (5,99) (1/5,14/23)	7. Which describes the axis of symmetry? x = -5 y = -5 (-5,-1)
8. Which are the solutions to the quadratic? x = 4 & 6 x = -4 & -6 there are no solutions	9. Which are the x-intercepts? x = 4 & 6 x = -4 & -6 there are no solutions
10. Where does the quadratic cross the x-axis? x = 4 & 6 x = -4 & -6 there are no solutions	11. Where does the quadratic cross the y-axis? x = 24 it does not cross the y-axis y = 24

Answer.
12. Is (4,-2) a solution for the given linear system? 2x - y = 6 -x + 3y = 14 maybe yes no	13. Given 4x² = 6x - 2 , how many solutions are there? 1 real solution, 1 imaginary solution 1 solution 2 solutions
14. Given 4x² = 6x - 2 , which are the solutions? x = 1 & 1/2 x = 1 there are no solutions	Be certain you can find solutions to problems using factoring techniques, completing the square, and applying the quadratic formula.
15. When given y = 4x² + 6x + 2, be prepared to explain, in writing, which method you would choose to find the solutions to the quadratic equation and give your reasons why.	Know how to use the discriminant to find the number of solutions to a quadratic equation.