Question

HELP MEDAL AND FAN...Determine which relation is a function.


A.


{(–4, 3), (–2, 3), (–1, 2), (2, 5), (3, 2)}


B.


{(–4, 1), (–2, 3), (–2, 1), (–1, 5), (3, 2)}


C.


{(–4, 1), (–2, 3), (–1, 2), (3, 5), (3, 2)}


D.


{(–4, 1), (–2, 3), (–1, 1), (–1, 5), (3, 2)}

Answer 1

ANYONE GONNA HELP????????????????????????????????????????

Answer 2

a relationship is a function if each x value has one and only one corresponding y value

Answer 3

so which of these sets of values has only one of each x value represented?

Answer 4

Actually, you can have x value repeated, if, and only if, it has the same y value each time.

However, you cannot have any x value which has more than one y value.

Answer 5

i've been waiting for a while now can u just give me the answer so we can be done with it??

Answer 6

@whpalmer4 ^^^^^^^

Answer 7

I'm not going to give you the answer. I will tell you how to find it yourself.

Those numbers, I'll take letter D as an example: {(–4, 1), (–2, 3), (–1, 1), (–1, 5), (3, 2)}

they come in pairs, which are (x,y). D has

(-4,1)
(-2,3)
(-1,1)
(-1,5)
(3,2)

so our x values are -4,-2,-1,-1,3 respectively. Notice that -1 appears twice in the list. Does it have the same y-value each time? If it does not, then this is a relationship but not a function.

Answer 8

So it's C??

Answer 9

Can you list all of the x-values for the pairs given in C?

Answer 10

it seems like it......which is y i need hlp

Answer 11

here is the list for C:

{(–4, 1), (–2, 3), (–1, 2), (3, 5), (3, 2)}

looks like the values for x are

-4
-2
-1
3
3

agree, or disagree?

Answer 12

Agree

Answer 13

okay, what are the corresponding y values? in particular, what are the corresponding y values for the two x values where x is 3?

Answer 14

here are the two I'm talking about:
(3,5)
(3,2)

same x values, but different y values. therefore, NOT a function. C is not the correct answer.

Answer 15

Ohhhhhhhhhhhhhh.......D is the correct answer????

Answer 16

I'll repeat what I said earlier about D:

Those numbers, I'll take letter D as an example: {(–4, 1), (–2, 3), (–1, 1), (–1, 5), (3, 2)}

they come in pairs, which are (x,y). D has

(-4,1)
(-2,3)
(-1,1)
(-1,5)
(3,2)

Notice how there are two pairs that have -1 as the first number? Do they have the same second number? If not, it is NOT a function.

Answer 17

A?

Answer 18

Let's look at A:
{(–4, 3), (–2, 3), (–1, 2), (2, 5), (3, 2)}

here are the x-values

-4
-2
-1
2
3

are any of the x-values the same? If not, then it is a function.