If f(x)=3x2−4​, find f(-3)

Answer 1

To find f(-3), we substitute -3 for x in the function f(x).

f(x) = 3x^2 - 4

f(-3) = 3(-3)^2 - 4
= 3(9) - 4
= 27 - 4
= 23

Therefore, f(-3) is equal to 23.