7. (16 pts) Let f(x) = (5x - 9)/(3x - 7)
(a) Find f - 1 , the inverse
function of f. Show work
(b) What is the domain of f ? What is the domain of the inverse function?
(c) What is f (2) ? f (2) = ______ work/explanation optional
(d) What is f - 1 ( ____ ), where the number in the blank is your answer from part (c)? work/explanation optional