Question

Which of the following points lies on the graph of the inverse of f(x) = 6^(x + 1)?

Answer 1

F ( x ) = 6^(x+1)
y = 6^(x+1)
$x+1=log _{6}y \\ x = log _{6}y-1$
The inverse is:
$y = log _{6}x$
And when you plug in the values: x = 1, y = - 1:
- 1 = log 1 - 1
- 1 = 0 - 1
 - 1 = - 1
so the answer is:
( 1, - 1 )