Question

Evaluate f(x) = -4x + x2 + 16 for f(-4).​

Answer 1

`f(-4)=48`

Explanation:

Value of functions

To evaluate a function for a given value of x, we replace the x for the value and perform the resulting operations.

The given function is (corrected):

`f(x)=-4x+x^2+16`

We need to find f(-4), so we use x=-4:

`f(-4)=-4*(-4)+(-4)^2+16`

`f(-4)=16+16+16`

`\boxed{f(-4)=48}`