This document discusses stretching and compressing functions both horizontally and vertically. It provides examples of compressing functions vertically by factors like 1/3 and horizontally by factors like 1/2 or -2 which compresses the graph left or right respectively. Functions can be stretched or compressed by applying factors to the input or output values.

1. Stretching and Compressing
Compression

2. Compression
1
2
1
2

3. vertically compressed by a factor of 1/3

4. g(x) = 2f(1/4x)
Graph:
w(x) = -3v(2x)
Graph:
s(x) = 1/3p(-2x)