Since the points are proportional, it implies that the ratio of the y coordinate and x coordinate must be equal for each point.
The point k (18,12) has its ratio as
[tex]k=\frac{18}{12}=1.5[/tex]
The ratio of option d gives
[tex]\frac{7.5}{5}=1.5[/tex]
Since the ratio is equal then:
This implies that point K can be represented by (7.5,5)
The right option is D
