SOLUTION: Can you please help me with finding f^(-1)(-41), if f(x)=4-3x i think that means the inverse, I'm not sure, ?

Algebra ->  Functions -> SOLUTION: Can you please help me with finding f^(-1)(-41), if f(x)=4-3x i think that means the inverse, I'm not sure, ?      Log On


   

Question 176411: Can you please help me with finding f^(-1)(-41), if f(x)=4-3x i think that means the inverse, I'm not sure, ?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
f%28x%29=4-3x Start with the given function.


y=4-3x Replace f(x) with y


x=4-3y Switch x and y. The goal is to solve for y


x-4=-3y Subtract 4 from both sides.


%28x-4%29%2F%28-3%29=y Divide both sides by -3.


%28-x%2B4%29%2F%283%29=y Reduce


So the inverse function is


-----------------------------------------


Start with the inverse function.


Plug in x=-41


Negate -41 to get 41


Add


Divide


So the answer is