Question

Which of the following lists of ordered pairs is a function?

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

Answer 1

in order to relation become a function x values shouldn't repeat

Answer 2

(x,y)
first number represent x-coordinate (domain )

Answer 3

but what is an ordered pair

Answer 4

(x,y) is a order pair (a point )