Answer:
The graph is plotted below.
Explanation:
Given:
Starting cart means number of nested carts is 0.
So, let the number of nested carts be represented along the x axis and height of the nested carts be represented along the y axis.
As per question,
When
, the height is

When
, the height is

When
, the height is

So, the points on the graph are (0,4), (13, 23.5) and (18, 31).
Plot these points on a graph and draw a line passing through all these points starting at (0, 4) and ending at (18, 31).
The graph is shown below.