Question

Which of the following is the inverse function of y = 3x + 1?

x = 3y + 1
y = (1/3)x + 1/3
y = (x – 1)/3
y = x/3 - 1

Answer 1

y= (x-1) /3 is the correct answer

Answer 2

Option C is the correct answer :
`y=((x-1))/(3)`

Explanation:

`y=3x+1`

For finding the inverse of this function, we will interchange x and y, then solve for y.

`3y=x-1`

`y=(x-1)/(3)`

Hence, option C is the correct answer :
`y=((x-1))/(3)`