# The function f is periodic. If f(3) = -3, f(5) = 0, f(7) = 3, and the period of the function of f is 6, then how do you find f(135)?

##### 1 Answer

Dec 9, 2015

#### Explanation:

If the period is

So,

So, for example,

Go back a couple of periods again (which means

In fact, going all the way up, you have

Iterating this last point, you have that