Question

Evaluate the following expression given the function below when f(-2) f(x)=x²+7

Answer 1

we are given the following function:

`f(x)=x^2+7`

We are asked to find:

`f(-2)`

This means the value of the function when x = -2, therefore, in the function where ever we find "x" we replace it with -2, like this:

`f(-2)=(-2)^2+7`

Solving the operations:

`f(-2)=4+7=11`

Therefore, f(-2) = 11