Which graph shows a function and it’s inverse ?

Which of these choices show a pair of equivalent expressions?

The marriott family bought a new apartment three years ago for $65,000. the apartment is now worth $86,515. assuming a steady rate of growth, what was the yearly rate of appreciation? what is the percent of the yearly rate of appreciation?

What is the point slope form of a line with slope -5 that contains point (2,-1)