Question

Which of the following expressions is the inverse of the functiony equals quantity x minus 2 divided by 3?

Answer 1

`y = 3x + 2`

Explanation:

Write the equation:

`y = (x - 2)/(3)`

Step 1. Change the x to the y and the y to the x.

`y = (x - 2)/(3)` →
`x = (y - 2)/(3)`

Step 2. Multiply both sides by 3.

`y - 2 = 3x`

Step 3. Add 2 to both sides.

`y = 3x + 2`