Question

Which relations are functions?



Choose all answers that are correct.

Answer 1

I have no clue about this one, but I think A isn't correct.

Answer 2

A is correct at all

Answer 3

do you think is C is a function?

Answer 4

Well yes because there are no two points that are on the same line.

Answer 5

Am I correct?

Answer 6

no it is not

Answer 7

there are pair of point on the same vertical line

Answer 8

Okay, so then C isn't correct. But what about B? I'm very confused on that option. :/

Answer 9

well, as no x value repeats thn it is a function

Answer 10

but if they make a vertical line, doesn't that mean it isn't am option.

Answer 11

it does. but this table is not a vertical line

Answer 12

Hmm...I see...

Answer 13

wut do you think about D?

Answer 14

it isn't a function? I'm not sure about that one either. Too many numbers.

Answer 15

yeah it isn't a function

Answer 16

Okay, thanks. :)