# Math 110 Test 1

The graph of y = f (x) is given below.

Choose the graph for each of the following functions.

For problems 9 - 12 choose the equation that yields the given graph.

Answer the following questions for the quadratic function
f (x) = -2x^{2} + 8x + 5 whose

graph is a parabola

13. The graph of the function opens:

A. Up

B. Down

14. What is the vertex of the parabola ?

A. (-2,-19)

B. (-2,-5)

C. (2,13)

D. (0,5)

15. What is the equation of the axis of symmetry for the
function?

A. x = 2

B. x = -2

C. x = 4

D. x = -4

16. What is y- intercept of the function ?

A. -2

B. 8

C. 5

D. 2

17. How many x- intercepts does the function have?

A. None

B. 1

C. 2

D. 3

18. What is the domain of the function?

A. {x | x ≥2}

B. {x | x ≤ 2}

C. All positive numbers

D. All real numbers

19. What is the range of the function?

A. {y | y ≥ -19}

B. {y | y ≤ -5}

C. {y | y ≤13}

D. {y | y ≤ 8}

20. What is the largest interval on which the function is
increasing?

A. (-∞,-2)

B. (-2,∞)

C. (-∞,2)

D. (2,∞)

**Answers:**

1. D

2. G

3. B

4. E

5. H

6. C

7. F

8. A

9. D

10. A

11. D

12. E

13. B

14. C

15. A

16. C

17. C

18. D

19. C

20. C

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