Question

Given: f(x) = 2x – 5 and g(x) = x + 2, find (f º g)(x)
Select one:
a. 4x – 3
b. 2x – 6
c. 2x – 14
d. 2x – 1

Answer 1

man we have dexter and batman in here

Answer 2

you dare mock the dark night?

Answer 3

Sorry it's the same thing as f(g(x))

\[f(g(x))= 2(x+2)-5\]

Answer 4

I was thinking of something else before xD

Answer 5

so its d

Answer 6

Yeah!

Answer 7

thanks i didnt quite get that one

Answer 8

This is an composite function
\[(f\cdot g)(x)=f[g(x)]\]What does it means?!\[f(x)=2x-5\]Now we have to replace x by g(x)\[f[g(x)]=2*g(x)-5\]Replecing the function g(x)\[f(x+2)=2*(x+2)-5\]\[f(x+2)=2x+4-5\]the answer is\[\boxed{(f\cdot g)(x)=2x-1}\]