Question

The cost table shows the average cost, a(x), of producing x number of earbuds.



When verifying that a function represented in another table is the inverse of the given cost function, which ordered pair can be expected?

(20, 20)
(52, 20)
(20, 52)
(52, 52)

Answer 1

(52, 20)

Reason: an inverse swaps input and output. If the original table has (20, 52) meaning a(20)=52, the inverse will have (52, 20).