Find The Inverse Of F(X) =7x+2

Find the inverse of f(x) =7x+2

 

Answer:

f ( x ) = 7 x + 2

y = 7 x + 2

- 7 x = - y + 2 /*(-1)

7 x = y - 2 / : 7

x = y/7 - 2/7 = ( y - 2 ) / 7

The inverse of the function is:

f^(-1) ( x ) = ( x - 2 ) /7