Question

given that f(x) = 2x + 1 and g(x) = x^2 -2.find (f o g) (x + 2).
choices a. 2x^2 - 8x + 5 c. 2x^2 + 8x - 5
b. 2x^2 + 8x +5 d.2x^2 - 8x - 5
pls help for my H.w

Answer 1

discrete math functions

Answer 2

I know this as composite func,
f o g means f is function of g, so plug g into x in f

Answer 3

your correct composite function

Answer 4

what is the correct sign negative or positive?

Answer 5

\[f(x)=2x+1\]
\[ g(x) = x^2 -2\]
\[(f o g)=2(x^2-2)+1\]