Answer:
Constant = 80
Step-by-step explanation:
Given: The graph showing the relationship between the height and width.
We have to find the value of the constant.
Consider the given graph.

Since, the given relationship between the height and width are inversely proportional to each other.
Inversely proportional is the relationship where when the value of one variable increases the value of other variable decreases.
Here, as the width increases the height decreases.
Thus, For given point (10,8) the value of constant is given by

Cross multiply, we have,
Constant is 80
And this constant is same throughout for all values.
Thus, Constant = 80