Question

Can someone guide me through this? Don't give me answer and make sure I understand it?

Answer 1

I would like to do process of elimination, I always find that easier.

Which of the following relations is NOT a function?
A. {(1, 1), (2, 4), (3, 6), (4, 8)}
B. {(−5, 25), (5, 25), (−6, 36), (6, 36)}
C. {(4, −4), (3, −3), (3, 3), (4, 4)}
D. {(3, 12), (5, 20), (7, 28), (8, 32)}

Answer 2

find the 1 that doesnt repeat in the x axes

Answer 3

then your work is done

Answer 4

B and C are out, right?
@burgerkingftw

Answer 5

no b aint out

Answer 6

No

Answer 7

Sorry, I meant A. :)

Answer 8

Nope.

Answer 9

No? (1, 1) That repeats...

Answer 10

o ok

Answer 11

Oh! I see never mind, you were talking about just the x axis not the y axis. :)

Answer 12

No, it doesn't work like that. Can you justify why you canceled those options out?

Answer 13

u have to find out which 1 is not a function

Answer 14

.-.

Answer 15

Hold on! Let me see if I can figure this out...

Answer 16

In a function the x's will not repeat.,
In this case you are looking for relations where the x's do repeat.
That will not be a function

Answer 17

I think the answer is C, because they have (3,-3) and (3,3). Am I right?

Answer 18

right. good job

Answer 19

Yes.

Answer 20

Yay! Thanks I get it! I might have one more type of question that has functions later. :)

Answer 21

Can you give me a similar one to make sure that I know it?

Answer 22

Never mind. :)

Answer 23

thx again fo the medal and did i help