Question

For `f(x)=-5x-2`, what is `f(5)`?

Answer 1

`f(5) = -27`

Explanation:

To solve this problem we need to substitute `color(red)(5)` for every occurrence of `color(red)(x)` in the function.

`f(color(red)(x)) = -5color(red)(x) - 2` Becomes

`f(color(red)(5)) = (-5 xx color(red)(5)) - 2`

`f(color(red)(5)) = -25 - 2`

`f(color(red)(5)) = -27`