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True [87]
3 years ago
7

Write a function for p(x), the profit from selling x necklaces.

Mathematics
1 answer:
Dovator [93]3 years ago
3 0

ANSWER

p(x) = 6x  -  15

EXPLANATION

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

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

We substitute the functions to get;

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

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

p(x) = 6x  -  15

Therefore the function for the profit is

p(x) = 6x  -  15

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