Name:    Algebra 1 - Chapter 9 Practice Test

1

Without graphing, tell whether the point (2, –18) is on the graph of .
 A) Yes B) No

2

Without graphing, tell whether the point (–5, 8) is on the graph of .
 A) No B) Yes

3

Tell whether the graph of the quadratic function opens upward or downward. Explain.
 A) Because , the parabola opens downward. B) Because , the parabola opens downward. C) Because , the parabola opens upward. D) Because , the parabola opens upward.

4

Find the zeros of the quadratic function from the graph. A) 1.5 C) –8 B) 4 and –1 D) 2 and –8

5

Find the axis of symmetry of the graph of .
 A) C) B) D) 6

Find the axis of symmetry of the parabola. A) C) B) D) 7

Find the vertex of the parabola . A) (–3, 2) C) (–2, 0) and (–4, 0) B) (2, –3) D) (3, –70)

8

Find the roots of .
 A) The only root is 2. C) The only root is –2. B) The roots are 1 and 3. D) The roots are 2 and –2.

9

A golfer hits the golf ball. The quadratic function gives the time x seconds after the golf ball is at height 0 feet. How long does it take for the golf ball to return to the ground?
 A) 16 sec C) 10 sec B) 5 sec D) 80 sec

10

Solve the quadratic equation by factoring.
 A) –4 and 2 C) –4 and –2 B) 4 and 2 D) 4 and –2

11

Solve the quadratic equation by factoring.
 A) 3 C) B) D) –3

12

Solve by using square roots.
 A) The solutions are 2 and –2. C) There is no solution. B) The solution is 2. D) The solution is –2.

13

Solve 64x2 – 121 = 0 by using square roots.
 A) ± C) No solution B) ± D) ± 14

Complete the square for to form a perfect square trinomial.
 A) C) B) D) 15

Solve by completing the square.
 A) 3 and –2 C) 3 and 0 B) 6 and –2 D) 6 and 3

16

Solve by using the Quadratic Formula.
 A) x = or x = C) x = or x = B) x = or x = D) x = or x = 17

Solve: A)  C)  B)  D)  18

Solve .
 A) or C) or B) or D) or 19

Find the number of solutions of the equation by using the discriminant.
 A) There is one solution. B) Cannot determine the number of solutions. The discriminant can only be used for a quadratic equation, and is not a quadratic equation. C) There are no real solutions. D) There are two solutions.

20

Find the number of x-intercepts of by using the discriminant.
 A) The function has two x-intercepts. C) The function has one x-intercept. B) The function has no x-intercepts. D) The function has three x-intercepts.

21

Simplify .
 A) C) 8 B) –6 D) 22

Evaluate for and .
 A) C) 0 B) D) –64

23

Subtract. A) B) C) D) 24

Multiply. A) C) B) D) 25

Factor .
 A) C) B) D) 