Question

http://imgur.com/QQ3tLRW

Answer 1

\[y=f(x)=x-3\]\[f(2(x-3)) \implies y=2(x-3)\]

Answer 2

That doesn't help.

Answer 3

set \[2(x-3)=1\] solve for \(x\) then set \[2(x-3)=6\] and solve for \(x\) those will be the endpoints of your domain

Answer 4

that is for A
for B, the range does not change

Answer 5

@satellite73 Thank you!