Question

7) Choose "function" or "not a function" for the problem. 3, 6, 3, :) 12, :) 2 2 2 not a function cannot tell from the given representation function N

Answer 1

Functions are binary relationships between two variables.

You "input" a value of x and as a result you get an "output" (value of y)

For every value of x there can only be one solution or value of y.

The value of x=3 has two possible solutions y=5/2 and y=7/2, this is not a function.