Question

What is the absolute value of (4n-1) ?

Answer 1

\[\left| 4n-1 \right|\]

Answer 2

It's |4n-1|. For each value of n, you replace it into the expression. For example, if n is 2, you have |4*2-1|=|8-1|=|7|=7. If n is -2, you have |4*(-2)-1| = |-8-1|=|-9|=9