If we rotate the graph of a function, we see if the rotated graph still corresponds to the graph of a well-defined function of the form y = f(x). Our solution involves a nice application of complex numbers. We also discuss alternative methods for tackling this sort of problem.
00:00 Intro
00:56 Setup with complex numbers
02:45 Outline of the solution
04:30 Calculations
09:08 Alternative methods
