Question

Which of the following relations is a function?
A. (10, 5), (3, -9), (9, 0), (10, -5)

B. (5, 10), (-9, 3), (0, 9), (0, -5)

C. (5, 10), (-9, 3), (0, 9), (-5, 10)

D. (0, 10), (-9, 3), (0, 9), (-9, -5)

Answer 1

help

Answer 2

For every value of x there can be only one value for y for it to be a function

Answer 3

ordered pairs are set up in form (x,y)
with that being said it is not a function IF two ordered pairs in a set has the same x value

Answer 4

whats the answer even though thats not help

Answer 5

@KlOwNlOvE

Answer 6

@cw4260 Look at the x-values of all the pairs in the options, see which one has ALL different one's.

Like in Option A:

(10, 5), (3, -9), (9, 0), (10, -5)

The x-values are 10, 3, 9, and 10.

There are 2 of the same x-values, which is 10.

And since it has 2 x-values it is NOT a function.

Answer 7

So what's your answer going to be?

Answer 8

What are the x-values here?

(5, 10), (-9, 3), (0, 9), (-5, 10)

Answer 9

5,-9,0and-5

Answer 10

the answer is b

Answer 11

Right @iGreen.

Answer 12

No, B has 2 x-values with 0 in it..so it's not a function.

Answer 13

5,-9,0and-5

Are any of those the saem?

Answer 14

*same

Answer 15

yeah

Answer 16

Which ones?

Answer 17

-5and 5

Answer 18

No, those are different..-5 and 5 aren't the same thing.

Answer 19

So there aren't any one's that are the same..so what's your answer going to be?

Answer 20

oh yea true. c

Answer 21

Yep, C is your answer.

Answer 22

thanks

Answer 23

No problem.