# For the following exercises, prove the identity. Plot the points and find a function of the form y = Acos(Bx + C) + D that fits the given data.

Chapter 7, Practice Exercises #20

For the following exercises, prove the identity.

Plot the points and find a function of the form y = Acos(Bx + C) + D that fits the given data.

**Transcribed Image Text:**

## x
y
0
-2
1
2
2 -2
3
2
4
-2
5
2