Question

Rosa is saving money for a trip. She has already saved 250$ and plans to save $40 per week. This situation can be represented by the function f(x)=250+40x, where x is the number of weeks. How much money has Rosa saved after 6 weeks?

Answer 1

After 6 weeks Rosa has saved $490.

Explanation:

1. You have the function given in the problem above, where
`x` os the number of weeks:

`f(x)=250+40x`

2. Therefore, to solve this problem you only need to substitute 6 weeks (or
`x=6`) into the given function, as following:

`f(x)=250+40x\\f(6)=250+40(6)=490`

3. The result is $490.