# Math Help - Express an absolue value function as a piecewise function

1. ## Express an absolue value function as a piecewise function

Express $f(x)= \mid x+1 \mid + \mid x-1 \mid$ as a piecewise function without absolute value symbols.

I know how to do one and u end up with two parts to the piecewise function. Am I going to get 4 parts of the piecewise function since there are two absolute values?

2. In fact, you'll get 3 parts of the piece wise function.

You'll get, from left to right:
a line with a negative slope
a straight horizontal line
a line with a positive slope