4 2/4 - 1 3/4 (simplify it)

Twenty-five percent of the customers entering a grocery store between 5 p.m. and 7 p.m. use an express checkout. consider five randomly selected customers, and let x denote the number among the five who use the express checkout.

Witch represents the inverse of the function f(x)=1/4x-12

Which graph represents the function g(x) = |x + 4| + 2?