Question

Which of the following relations represents a function?

a. { (2, 3), (1, 3), (3, 3) } c. { (1, 3), (2, 3), (1, 4) }
b. { (1, 3), (2, 3), (2, 4) } d. { (2, 2), (2, 3), (2, 1) }

Answer 1

A•••Because the X values aren’t use more than one time. Functions can have the same Y values but have to have different X values
The answer is A