Question

The function f(x)=43x+320 gives the function from selling x items. What is the average profit per item if 123 items are sold?

Answer 1

Profit of x items =43x + 320

Profit of 123 items = 43(123) + 320

                              = 5289 + 320

                              = 5609

Average profit = 5609/123

                        = 45.6

Hence, average profit = 45.6.