Question

Let f(x) = x² + 3x
What is f(-1) ?

Need help ASAP !!!!

Answer 1

-2

Explanation:

f(x) = x² +3x

so f(-1) means f(x= -1) so wherever you see a "x" in your equation you put a "-1"

f(-1) = (-1)² +3*(-1) = 1 -3 = -2