Question

Which of the sets of ordered pairs represents a function? (1 point)

A = {(2,7), (1,-5), (7, 2), (2, -9)}
B = {(5,3), (-2,-9), (-3, 8), (9,3)}
a.
Only A
b.
Only B
C.
Both A and B
d.
Neither A nor B

Answer 1

Only B

Explanation:

A has 2 pairs with the x as the number 2, so they are not functions.

B has all independent pairs with their own numbers

So only B is the correct answer.