SOLUTION: Use the function to answer the question. f(x) = 10x - 5 What is the value f^-1(-4)? (Points : 4) 45 35 0.01 0.1

Algebra ->  Functions -> SOLUTION: Use the function to answer the question. f(x) = 10x - 5 What is the value f^-1(-4)? (Points : 4) 45 35 0.01 0.1       Log On


   

Question 665089: Use the function to answer the question.
f(x) = 10x - 5
What is the value f^-1(-4)?
(Points : 4)
45
35
0.01
0.1

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

 y = 10x - 5    ||finding Inverse (exchanging the x and y)

 x = 10y - 5   0r  y = (x+5)/10

+f%5E%28-1%29%28-4%29+=+%28-4%2B5%29%2F10+=+1%2F10+=+.1