Question

lynn, jude and anne were given the function f(x)=-2x^2+32, and they were asked to find f(3). lynns answer was 14, judes answer was 4, and annes answer was +-4. who is correct?

Answer 1

The only thing we need to here to find who is correct is evaluate the function
`f(x)=-2 x^(2) +32` at
`x=3`. To do that we are going to replace
`x` with
`3` in the function:

`f(x)=-2 x^(2) +32`

`f(3)=-2 (3)^(2) +32`

`f(3)=-2 (9) +32`

`f(3)=-18+32`

`f(3)=14`

We can conclude that Lynn is correct.
`f(3)` is indeed 14.