Answer:
area of the shaded figure

Your question seems incomplete
is there an image supposed to be attached to it
Answer:
B
Step-by-step explanation:
To find the inverse of a function, switch the x and the y and then solve for the new y. Like this:

. Subtract 5 from both sides to get

and then multiply both sides by 3. 3(x - 5) = y. B is your choice.