If f(x) = x − 4 and g(x) 1/2= x − 2, find f[g(−6)].

Question

bahrom7893 · Answer

Just do what we've been doing so far.

anonymous · Answer

i know it had a fraction and it threw me off big time im horrible in math

bahrom7893 · Answer

g(x)/2 = x-2
2*g(x)/2 = 2*(x-2)
g(x) = 2x-4

bahrom7893 · Answer

Does that help?

anonymous · Answer

kinda hold on let me try and solve it

anonymous · Answer

is it 3 ?

bahrom7893 · Answer

can you post the steps? Saves me time and effort to just look at your solution instead of solving it over, and also lets me know if and where you went wrong.

anonymous · Answer

g(f(x))=2((1/2)x-3)+5=x-6+5=x-1
 g(f(4))=4-1=3
can u understand that..

anonymous · Answer

for the first part i solved it like this...
f(x)=(1/2)x-3
 f(4)=(1/2)4-3
 f(4)=2-3
 f(4)=-1
then 
g(x)=2x+5
 g(f(4))=g(-1)=2(-1)+5=-2+5=3
 g(f(4))=3