Question

Determine if the inverse of the function is also a function.
Graph of y equals x to the third plus 5x plus 2. Points at negative 5 comma negative 148; negative 4 comma negative 82; negative 3 comma negative 40; negative 2 comma negative 16; negative 1 comma negative 4; 0 comma 2; 1 comma 8; 2 comma 20; 3 comma 44; 4 comma 86; 5 comma 152.

Answer 1

For any function that is one-to-one, the inverse will always be a function. For any function that passes the vertical line test but fails the horizontal line test, its inverse will not be a function.