**WILL MEDAL**
Determine which relation is a function.

A.
{(–5, 1), (–5, 0), (–2, 1), (–1, 4), (6, 2)}

B.
{(–5, 1), (–2, 0), (–2, 2), (3, 4), (6, 2)}

C.
{(–5, 1), (–2, 0), (–1, 1), (2, 4), (6, 3)}

D.
{(–5, 3), (–2, 0), (–1, 2), (6, 4), (6, 3)}

Question

**WILL MEDAL**
Determine which relation is a function.	
 
 A.
{(–5, 1), (–5, 0), (–2, 1), (–1, 4), (6, 2)}
 
 B.
{(–5, 1), (–2, 0), (–2, 2), (3, 4), (6, 2)}
 
 C.
{(–5, 1), (–2, 0), (–1, 1), (2, 4), (6, 3)}
 
 D.
{(–5, 3), (–2, 0), (–1, 2), (6, 4), (6, 3)}

directrix · Answer

@*louisa*

directrix · Answer

In a function, the same x-value is not paired with two different y values for that x.

directrix · Answer

Consider option A:

 A.      {(–5, 1),      (–5, 0),         (–2, 1), (–1, 4), (6, 2)}

The x of -5 goes to 1.
The x of -5 also goes to 0.

The x goes to two different y values.

Relation A is NOT a function.

Now, analyze the other options in the same way, okay?

anonymous · Answer

Oh ok and sorry my internet went out

directrix · Answer

What did you get for the answer after you checked the options? @*louisa*