Question

Given f(x) = 2x2+3 fins f(-3)

Answer 1

I'm assuming that you are given the equation f(x) = 2x^2 + 3 and the value f(-3).

To find this, all you need to do is plug in the value of -3 in f(x) for all x values. It would look like:

$f(x) = 2(-3)^{2} + 3$

All you need to do is simplify:

$f(x) = 2(9) + 3$

$f(x) = 18 + 3$

$f(x) = 21$

Your final answer is f(x) = 21.