Write the letter of the correct answer on your answer sheet. If your answer is not found among the choices, write the correct answer.

For items 1-5, refer to the graph at the right.

1. Which of the following could be the equation of the parabola?

A. = ( − 2)2 + 1 C. = ( + 1)2 + 2

B. = ( + 2)2 + 1 D. = ( − 1)2 + 2

2. Determine the y- intercept of the graph?

A. = −5

C. = 5

B. = −3

D. = 3

3. What is the range of the parabola?

A. {:≥1}

C. {:≥ -1}

B. {:≤1}

D. {:≤ -1}

4. What is the axis of symmetry of the graph?

A. x = 2

C. y = 2

B. x = 1

D. y = 1

5. What is the vertex of the parabola?

A. (-2, -1)

C. (2, 1)

B. (-2, 1)

D. (2, -1)

6. Describe the graph of () = −2 + 6 − 24

A. Opens to the right

C. Opens to the left

B. Opens upward

D. Opens downward

7. What is the y-intercept of the parabola defined by the equation = ( + 2)2?

A. -4

B. -2

C. 2

D. 4

8. What is the minimum value of the graph of the quadratic function = 2 + 4?

A. -4

B. -2

C. 2

D. 4

9. What is the vertex of the parabola having the equation y = (x – 3)2 + 1?

A. (3, -1)

B. (-1, 3)

C. (1, 3)

D. (3, 1)

10. What is the vertex form of the equation =2−4+7?

A. =(−2)2−3

C. =(+2)2−3

B. =(−2)2+3

D. =(+2)2+3

11. The equation of the axis of symmetry of the function = −22 + 5 is.

A. x = 5

C. − 4

3

B. x= -2

D. 5

4

12. Which of the following equations of parabola has a wider opening? A. y = 1

4

2

C. y = 3x2 B. y = 1

2

2

D. y = 5x2

13. Determine the equation of the resulting graph when the parabola with the equation

y = x2 + 3, is shifted 4 units downward.

A. y = x2 – 4

C. y = x2 + 1

B. y = x2 – 1

D. y = x2 + 7

For items 14-15, refer to the graph at the right.

14. Which of the following could be the equation of the parabola?

A. = −2 + 5

C. = 2

2

+ 5

B. = − 2

2

= 5

D. = 2 + 5

15. What is the vertex of the parabola?

A. V(-5, 0)

C. V(0, 5)

B. V(0, -5)

D. V(5, 0)