# ALGEBRA HELP

posted by
**Kirky**
.

1. What is the period of the function?

y=4 cos pi x

A. 1

B. 2

C. pi

D. 2pi

posted by
**Kirky**
.

1. What is the period of the function?

y=4 cos pi x

A. 1

B. 2

C. pi

D. 2pi