Do you see any cases where for a given x, you see different values of y ?
if so, that set of ordered pairs is NOT a function
(that is, you have 2 or more points on the same vertical line)
Which set of ordered pairs does NOT represent a function?
A) (0, 1), (2, 2), (4, 8), (-2, 7), (5, 8)
B) (0, 1), (2, 2), (4, 8), (2, 7), (5, 8), (7, 9)
C) (-3, 6), (2, 7), (0, 5), (1, 5), (4, 9), (5, 4)
D) (-4, 2), (-3, 2), (-2, 2), (-1, 2), (0, 2), (1, 2)
2 answers
B), (2, 2), ,,,, (2, 7)
Yikes, TWO y values for x = 2 !!!!
Yikes, TWO y values for x = 2 !!!!