What is the difference between an equation that is a contradiction and an equation that is an identity?

Mary beth used the mapping rule to find the coordinates of a point that had been rotated 90° counterclockwise around the origin. examine the steps to determine whether she made an error. m (3, –6) is rotated 90° counterclockwise. (x, y) → (–y, x) 1. switch the x- and y-coordinates: (6, –3) 2. multiply the new x-coordinate by –1: (6(–1), –3) 3. simplify: (–6, –3) .

If you could answer these your a life saver

Wich statement could be used to explain why the function h(x)= x^3 has an inverse relation that is also a function