Question

If f(x) = 2x2 + 4, find f(3).

Answer 1

If f(x) is that equation and they want f(3) notice all they did was just change the "x" to a 3... Guess what?? Thats all you have to do too!!! =P

Answer 2

So lets do it.. lets just change all the x's to 3's

Answer 3

This is f(x)

Answer 4

And this is f(3)