### Home > PC > Chapter 9 > Lesson 9.3.5 > Problem9-159

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 $3$.
3. The period is π. Find frequency: $pb = 2π$.
4. The amplitude is $2$.

Cosine Function

The cosine is shifted to the right $\frac{\pi}{4}$.