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# Quadratic Functions Exercises

### Example 1

Sketch a graph of the following: y = x2 – 1.

### Example 2

Sketch a graph of the following: y = x2 + 3.

### Example 3

Sketch a graph of the following: y = -x2 + 3.

### Example 4

Sketch a graph of the following: y = -x2 – 1.

### Example 5

For the following graph of a quadratic polynomial, find the roots of the polynomial, if any exist.

### Example 6

For the following graph of a quadratic polynomial, find the roots of the polynomial, if any exist.

### Example 7

For the following graph of a quadratic polynomial, find the roots of the polynomial, if any exist.

### Example 8

For the following graph of a quadratic polynomial, find the roots of the polynomial, if any exist.