Question

Which of the sets of ordered pairs represents a function

Answer 1

B

Explanation:

For the ordered pairs to be a function, each value of x must map to exactly one unique value of y

A

- 5 → - 3 and - 5 → 3

x = - 5 maps to 2 different values of y, thus not a function

B

Each value of x maps to a unique value of y, thus B represents a function