Answer:
1st option
Step-by-step explanation:
let y = f(x) and rearrange making x the subject
y = 2x + 1 ( subtract 1 from both sides )
y - 1 = 2x ( divide both sides by 2 )
= x
Change y back into terms of x with x being the inverse h(x)
h(x) =
=
x - 
Answer:
Step-by-step explanation:
Let the numbers are x and y.
<u>Given:</u>
<u>Solve by substitution:</u>
- 3x + 2x - 8 = 22
- 5x = 22 + 8
- 5x = 30
- x = 6
<u>Find y:</u>