(n) If A is a subset of the codomain of f, explain why f(f-1(A)) is a subset of A. (0) Give an example of a function f and subset of its codomain A for which A is not a subset of f(f-"(A)). (p) Find the domain of f og in terms of the domain of f and g as a preimage.

Which of the following are one-to-one functions? OS = {(4, – 3), (1, 7), ( – 4, – 5), ( – 1, – 1), (10, 8), (6, – 6)} OF = {(- 2, – 1), (0, 0), (3, 2), (6, 5), (8, 7), (10, 12)} %3D OM = {(0, – 5), (3, 2), (3, 5), (6, 7), (9, – 6), (12, 13)} %3D OR= {(- 2,0), (2, 1), (4, 6), (7, 8), (11, 10), (14, 16)} OG = {(– 1, 2), (6, – 1), (1, – 2), (4, 0), (10, 1), ( – 5, – 1)} | Question Help: Message instructor Submit Question

4. Pinky's Pizza charges a base fee of $15.50 for a large pizza and S1.50 for each additional topping. a. Find a function f that models the price of a pizza with n toppings. b. Find the inverse of f. What does frepresent?