Question

How do you graph absolute value `y = absx - x` on a TI-84 Plus Calculator?

Answer 1

With absolute values you usually have two graphs to make

Explanation:

(1) `x>=0` the bars are not necessary

`->y=x-x=0`

(2) `x<0` the bars will change the sign

`->y=-x-x=-2x`
graph{|x|-x [-10, 10, -5, 5]}