I think your question is missed of key information, allow me to add in and hope it will fit the original one. Please have a look at the attached photo.
<em>If the ordered pairs graphed are all equivalent ratios, what ordered pair is missing?
</em>
<em>A) (3,4)
</em>
<em>B) (3,6)
</em>
<em>C) (4,4)
</em>
<em>D) (4,6)</em>
My answer:
The given points in the graph are:
(2,3)
(6,9)
(8,12)
All of them have the same ratio: x : y = 2: 3
So Only answer D (4,6) has that ratio between their coordinates. We choose D.