Question

Which of the following relations is a function?
0, 4), (-4, 6), (0, 3), (-6, 2)







(0, 0), (-4, 3), (9, 1), (-4, 5)







(9, 1), (-4, 4), (0, 1), (9, 2)







(0, 4), (-4, 2), (9, 1), (-6, 2)

Answer 1

For every x, there is exactly one y value. <- definition of a function

Answer 2

which one of these satisfies that definition?

Answer 3

(x, y)

Answer 4

uh? C.

Answer 5

No, C fails because 9 is mapped to 1 AND 2.

Answer 6

d

Answer 7

Yes, good job.

Answer 8

thx

Answer 9

yw