f(x) = x^2 + 2x + 1
To find f(-7), all we need to do is plug in -7 everywhere there is an x. Then, we simplify to find our numeric answer.
f(-7) = (-7)^2 + 2(-7) + 1
= 49 - 14 + 1
= 35 + 1
= 36
f(-7) = 36
Hope this helps!! :)
