Question

If f (x) = 3x²-7 , find f(4)

Answer 1

What the question is asking you to do is plug in 4 in place of x in the given equation:

`f (x) = 3(4)^2-7`

`4^2=16*3-17=41`
Final answer: 41

Answer 2

Hello,
To solve this function for f(4) we need to plug 4 into f(x) and the result will be our answer. We know that f(x) is
`3x^2-7`. Plugging in 4 we get
`3(4)^2-7=41`. Therefore, f(4)=41. Hope this helps!