Question

The revenue from selling x necklaces is r(x) -10x. The cost of buying x necklaces is c(x) 4x 15 The profit from selling x necklaces is px) -x)-c) Write a function for p(x), the profit from selling x necklaces.

O A. p(x) 6x 15
O B. p(x) -14x-15
O C p(x) -14x + 15
O D. p(x)- 6x -15

Answer 1

The correct answer is B) p(x) = -14x - 15

Explanation:

To find this, start by writing the function as indicated.

p(x) = r(x) - c(x)

Now input the functions into the appropriate spots.

p(x) = -10x - (4x + 15)

p(x) = -10x - 4x - 15

p(x) = -14x - 15

Answer 2

`P(x) =14x-15`

Explanation:

The revenue from selling x necklaces
`r(x)= -10x`

The cost of buying x necklaces is
`c(x)= 4x+15`

The profit from selling x necklaces is
`P(x) = r(x)- c(x)`

Replace r(x) and c(x)

`P(x) =-10x-(4x+15)`

`P(x) =-10x-4x-15`

`P(x) =14x-15`