Question

If `f(x) = x^2- 2`, how do you find expressions for f (-x)-2?

Answer 1

`f(-x)=x^2`

Explanation:

Simply substitute `-x` into `x`, then subtract 2 from `f(-x)`.

`f(x)=x^2−2`
`f(-x)-2=(-x)^2−2`
`f(-x)-2+2=(-x)^2−2+2`
`f(-x)=(-x)^2`
`color(red)(f(-x)=x^2)`