Question

Given f(x) = the quantity of x minus 7, divided by 3, solve for f-1(4).

Answer 1

-1

19

33

37

Answer 2

@magbak

Answer 3

@ganeshie8

Answer 4

\[\large f(x) = \dfrac{x-7}{3}\]

like this ?

Answer 5

yeah

Answer 6

you want to find \(\large f^{-1}(4)\)
that means you need to find what value of x gives you 4 :

\[\large 4 = \dfrac{x-7}{3}\]

solve x

Answer 7

how do I do that

Answer 8

cross multiply, you get :
\[\large 12 = x-7\]

can u take it from here ? :)

Answer 9

the answer is 19