Question

If f(x) = x^2 - 2x find: f(-3) =

Answer 1

I hope this helps you



x= -3


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


f (-3)=9+6


f (-3)=15

Answer 2

Everything you need to do is replace x by it's value, which is in this case -3.
F(x) = x^2 - 2x
f(-3) = (-3)^2 - 2(-3)
f(-3) = 9 - (-6)
f(-3) = 9 + 6
f(-3) = 15

Hope this Helps! :)