You can put this solution on YOUR website!
the function is one-to-one if each has corresponding and vice versa
use Horizontal Line Test, a test to determine if a function is one-to-one
If a horizontal line a function's graph than , then the function is one-to-one.
your graph, so far I can see when I zoom in, has a part of line in the middle that goes along x-axis which is horizontal line in this case; so, that means more then one value of has value of
if so, the function is one-to-one
