# Precalc 11 – “Week 13”

This week in Precalculus 11 we learned about Absolute Value Functions. We have already done absolute values which is:

$\mid-3x+5\mid=11$

Which is $3x=6$

$x=2$

Absolute values turn the equation positive. Therefore an Absolute Value Function can only be positive.

$y=\mid-3x+5\mid$

As you can see the blue line is $y=-3x+5$, and because absolute values need to be positive then the line cannot be below the x-axis, therefore it is flipped as you can see by the red line: $y=\mid-3x+5\mid$