Question

This graph shows a proportional relationship.

What is the constant of proportionality?

Enter your answer as a decimal in the box.

Answer 1

Answer is 13.8

Step by step

Your constant of proportionality is the slope or rate of the graph.

The constant of proportionality k is given by k=y/x.

From your graph you have points given ( 2, 27.60) and ( 6, 82.80)

k = 27.60/2 = 13.8

k = 82.80/6 = 13.8

Rate is the same and the line goes through (0, 0) so it is proportional