Question

MEDALS GIVEN!!
Which set of ordered pairs represents a function?
(0.1) (1.3) (1.5) (2.6)
(0.0) (1.2) (2.4) (3.4)
(0.1) (1.2) (2.3) (2.4)
(0.0) (0.2) (2.2) (2.4)

Answer 1

all those . should be ,

Answer 2

its not an option though.

Answer 3

if its a function then we cant have two the same x value mapping to different y values

Answer 4

I am saying you should write orderd pairs like (x,y) not (x.y)

Answer 5

ordered pairs*

Answer 6

all the periods should be commas

Answer 7

@zzr0ck3r sorry, i was pressing the wrong key.

Answer 8

ok for the first one, is it the case that the same x value is in a ordered pair with two different y values?

Answer 9

yes.

Answer 10

then its not a function

Answer 11

how about the second one?

Answer 12

The answer is the second one I think, you just have to look at the x's and make sure no numbers are the same

Answer 13

what part of you guys seeing me walk the user into answering it themselves makes you want to post answers?

Answer 14

@ms.hi is it the case for the second one?

Answer 15

no.

Answer 16

then its a function

Answer 17

now check the 3rd and 4th one

Answer 18

no

Answer 19

then the only function is which one?

Answer 20

the second one.

Answer 21

correct

Answer 22

easy peasy right?

Answer 23

@zzr0ck3r yes! i really suck at math. And for some reason i understood your technique better. thanks a lot. Merry Christmas!

Answer 24

ditto