Question

For the pair of functions, f(x)=2x and g(x)=2x^2-4x+1 find the following.
a)(f.g)(x)=?
b) (f.g)(-3)=

Answer 1

is it f times g ?

Answer 2

Yeep

Answer 3

or composition (. replaces the little circle)? @elijahsmom

Answer 4

(f.g)(x) is f times g evaluated at x. So you'd multiply f and g together, expand and simplify.
(f.g)(-3) is just f times g evaluated at -3. So use your answer from the first part and substitute -3 for all x's you find.