Question

In which set of ordered pairs Is y NOT a function of X? A

{(1, 3), (2, 3), (3, 3), (4,3)}
B) {(1,3), (-2,5),(-2,7),(3,5)}
C){(7,2), (2,5), (0,4), (1,5)
D) {(-1,5), (2,6), (4,8), (9,4)}​

Answer 1

b hjjjkkkokmnhjmkkkkmkjnjinjiniunui

Answer 2

b

Explanation:

for every x, there must be exactly one y for it to be a function. so, if there is more than one x per y, it's not a function.

in b, -2 (x) has two different y's which are 5 and 7, making it not a function.