Hey guys! I have a new topic in algebra and I was hoping someone could help me out? Thanks!

Determine whether the following relation is a function.

left-brace left parenthesis 3 comma 7 right-parenthesis comma left-parenthesis 3 comma 8 right-parenthesis comma left-parenthesis 3 comma negative 2 right-parenthesis comma left-parenthesis 3 comma 4 right-parenthesis comma left-parenthesis 3 comma 1 right-parenthesis right-brace
A. It is a function because the ordered pairs all have the same x-value.
B. It is not a function because there are multiple y-values paired with a single x-value.
C. It is a function because none of the ordered pairs have the same y-value.
D. It is not a function because none of the ordered pairs have the same y-value.

I need help with this asap! Does anyone know how to work this problem out?

- Lupa

2 answers

I am taking the same assignment I believe right now. Give me a moment and I will see how I can help.

- Seeker
geez - ever heard of actual math?
{(3,7),(3,8),(3,-2),(3,4),(3,1)}
Now, ever hear of the vertical-line test?
what one characteristic makes a relation a function?