Question

if f(x)=x^2 +3x, find f(-3) for the Domain={Positive Integers}.
A. 0
B. 18
C. 27
D. nothing
E. none of these

Answer 1

just plug the x = -3 in the function

Answer 2

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

Answer 3

got it?

Answer 4

0

Answer 5

so it is 0.

Answer 6

That's correct!