Which of the following sets of ordered pairs represents a function?
A.
{(-12,8), (-15,8), (-5,-8), (-12,-8)}
B.
{(8,-9), (-8,-5), (8,-7), (-8,-6)}
C.
{(13,-3), (13,0), (13,-1), (13,-1)}
D.
{(-9,8), (-5,-8), (-7,8), (-6,-8)}

Question

Which of the following sets of ordered pairs represents a function?
 A. 
{(-12,8), (-15,8), (-5,-8), (-12,-8)}
 B. 
{(8,-9), (-8,-5), (8,-7), (-8,-6)}
 C. 
{(13,-3), (13,0), (13,-1), (13,-1)}
 D. 
{(-9,8), (-5,-8), (-7,8), (-6,-8)}

AspenCade · Answer

the x cannot repeat, but the y can

Tavarius · Answer

The answer has to be D)

Tavarius · Answer

@aspencade wrote:

the x cannot repeat, but the y can

The reason I said that is that because if the "x" can't repeat and the "y" can, the most logical answer would be D), the "y" is still repeating but the "x" is not which makes D) the correct answer.

AspenCade · Answer

yeah