Question 242005
f(-2) is basically asking what value is f(x) when x equals -2

so plug it into the equation

(-2)^2+2(-2)+9 simplify

f(x+9)

(x+9)^2+2(x+9)+9 simplified gives you
x^2+81+2+2x+18 combined like terms

=x^2+2x+101

I hope that helps...