Question

Determine which relation is a function.

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

Answer 1

The answer is B (4,2), (6,-5), (3,2), (-1,4)
The way you know that this is the answer because each of the X is not repeated ( x is the first digit in each coordinate pairs . Notice set A has 7 repeated so it the function