### Home > PC > Chapter 9 > Lesson 9.3.5 > Problem 9-159

9-159.

Find possible equations for the graph below in terms of both sine and cosine.

Sine Function

1. There is no horizontal shift.

2. It is shifted down

3. The period is π. Find frequency: .

4. The amplitude is

Cosine Function

The cosine is shifted to the right

Be careful with your sign.