Question

Find f(-3) if f(x)=x2

Answer 1

f(-3)=9

Explanation:

We want to find what f(x), or y is, when x is equal to -3.

f(x)=x^2

We want to find f(-3). Therefore, we can substitute -3 in for x.

f(-3)=(-3)^2

Evaluate the exponent. -3^2 is the same as -3*-3.

f(-3)=-3*-3

f(-3)=9