Question

How can you tell from a graph whether two functions are inverses of each

other?
o the graphs of the functions are reflections across the line y=x.
o the graphs of the functions are reflections across the x-axis.
o the graphs of the functions are reflections across the y-axis.
o it is not possible to tell from a graph if functions are inverses of each other.

Answer 1

if the two graphs are symmetric with respect to the line y = x (mirror images over y = x ), then they are inverse functions.