The domain is all real numbers, reason being, you can put any number for x and get a valid coordinate.
What relationship are you talking about
Answer:
h(f(x)) = 2x - 11
Step-by-step explanation:
To evaluate h(f(x)) substitute x = f(x) into h(x)
h(x - 7)
= 2(x - 7) + 3
= 2x - 14 + 3
= 2x - 11
See attached image for work.
Suppose in 1992 Chris was x years old, his brother was then 2x years old.
6 years later in 1998, Chris is (x+6) years old, his brother is (2x+6),
(x+6)=(2/3)(2x+6)
x+6=(4/3)x+4
(4/3)x-x=6-4
(1/3)x=3
x=6
in 1992, Chris was 6, so in 2018 he will be 6+(2018-1992)=32 years old.
