Question

] Which relation does not represent a function?

(-8, 4), (-3, 2), (1, 3), (5, -8)

(2, 0), (4, 6), (7, 6), (8, 5)

(-4, 6), (-1, 1), (0, 4), (4, 7)

(1, 2), (2, 5), (5, 7), (1, 3)

Answer 1

the last one

Answer 2

the one where the first coordinate appears more than once

Answer 3

the same x value cannot be assigned to two different y-values

Answer 4

@above not necessarily, you can have two of the same coordinate in a function and a relation