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lol

if \[f(x)=x ^{2} \] and \[g(x)=x+4\] find:
A) ( fog ) (x)
B) (fog) (2)

do you know how to evaluate composite functions

no

take the function g(x) and put it into the variable for f(x) so f(x) = (x+4)^2 right

yeah .. lol

so just plug in whatever you want to

No

yes

NO

yes

okay .

good

Shut up

f(x)=x^2
f(g(x))=(g(x))^2
f(g(x))=(x+4)^2
(f o g)(x)=(x+4)^2

optionally, you can expand (x+4)^2 to get x^2 + 8x + 16, but again, it's optional in my view

(fog)(2)= (6)^2

keep going

(fog)(2)= 12?

36*

36, yes

so the answer is fog(2)=36?

yep

Thank you(: