Question

Which set of points represents a function?

A. (1, 4), (–1, 4), (4, 7), (–4, 2), (3, 6)
B. (–1, 4), (–1, 2), (4, 7), (–1, 2), (3, 6)
C. (1, –4), (–1, 2), (4, –7), (3, 2), (3, –4)
D. (1, 4), (–1, 2), (4, 7), (–1, 3), (3, 4)

Answer 1

Explanation:

all u really need to do for this is look at ur x values.....if there is no repeating x values, then it is a function. A function can have repeating y values....just not the x values

A. This is a function because there is no repeating x values

B. not a function....u have repeating x values of -1

C. not a function...u have repeating x values of 3

D. not a function...u have repeating x values of -1