Question

The profit earned from postpaid plan subscribers is given by the function P(x) = 0.2x³ - 2000x + 1500, where x represents the number of subscribers and P(x) as the profit. How much is the profit if there are 2000 subscribers?

Answer 1

`P(2000) = 1599601500`

Explanation:

Given

`P(x) = 0.2x\³ - 2000x + 1500`

Required

Find P(x) when x = 2000

To do this, we substitute 2000 for x in
`P(x) = 0.2x\³ - 2000x + 1500`

`P(2000) = 0.2 * 2000^3 - 200 * 2000 + 1500`

`P(2000) = 0.2 * 8000000000 - 400000 + 1500`

`P(2000) = 1600000000 - 400000 + 1500`

`P(2000) = 1599601500`

Hence, the profit is

`P(2000) = 1599601500`