If you have a function and it’s inverse, how can you be sure that both equations represent functions?

When you plot the graph of either, it passes both the horizontal and vertical line tests.

Step-by-step explanation:

A function will pass the vertical line test. This is what make a relation a function. It will have an inverse function if it also passes the horizontal line test. (The inverse function is the reflection of the function across the line y=x.)

Of course, the domain of one is the range of the other, and vice versa.

The vertical line test passes if no vertical line intersects the graph of the relation in more than one point. The horizontal line test is similar: no horizontal line can intersect the graph in more than one point.

take it another

step-by-step explanation:

what is the figure? attach a picture.