C ) Inverse variation .
Given : Graph.
To find : What type of variation do the adjacent side lengths exhibit.
Solution : We have given graph between width and height of the rectangle .
Width shown by the x axis .
Height shown by the y axis .
Coordinates are ( 1, 4) ( 2,2) ( 8 ,0.5) ( 16 ,0.25) .
We can see from the given coordinates :
As the values of width coordinates increases , the values of height coordinates is decrease .
That mean width and height are inverse of each other .
Therefore, C ) Inverse variation .