Question

Given the function f(x) = 6(x+2) − 3, solve for the inverse function when x = 21.

Answer 1

y = 6(x+2) − 3
can you isolate x from that ?
start by adding 3 to both sides

Answer 2

First, distribute the 6(x+2) -3
6x + 12 -3
f(x) = 6x + 9
the inverse of this would be
f(x) = 6x - 9
i think.

Answer 3

another way id to put 6(x+2) − 3 = 21 and find 'x'
but i would suggest you to first find the inverse function

Answer 4

wait actually the inverse is
f^-1(x) = 1/6 x - 9
right?.. my alg 2 is rusty..

Answer 5

nopes, incorrect....

Answer 6

I got 2 which was right.. Thanks!

Answer 7

yes, 2 is correct final answer.

Answer 8

the inverse function is , x - 9 / 6
21 - 9 = 12/6
= 2

Answer 9

y == 6x + 9 inverse would be x= 6y + 9