# Worksheet: Vertex of a Parabola

In this worksheet, we will practice identifying the coordinates of a vertex of a quadratic graphically and algebraically and whether it is a maximum or a minimum.

**Q1: **

Find the coordinates of the vertex of the function .

- A
- B
- C
- D

**Q3: **

A quadratic function has roots of 3 and 5 and a maximum value of 6. What is its vertex form?

- A
- B
- C
- D
- E

**Q4: **

The graph of a quadratic function is above the -axis when is between 7 and 19 and reaches a maximum of 14. What is in vertex form?

- A
- B
- C
- D
- E

**Q7: **

Which of these functions has the greatest maximum value?

- A
- B
- C
- D

**Q8: **

The vertex of the curve of a quadratic function is a maximum point if the sign of the coefficient of is , and is a minimum point if the sign of the coefficient of is .

- A negative, positive
- B positive, negative