1. There is a proportional relationship between the number of months a person has had a
streaming movie subscription and the total amount of money they have paid for the
subscription. The cost for 6 months is $47.94. The point (6, 47.94) is shown on the
graph below.
cost (dollars)
180
160
140
120
100
80
60
40
20
(6,47.94)
10 12 14
time (months)
16
18 20
22
a. What is the constant of proportionality in this relationship?
b. What does the constant of proportionality tell us about the situation?
c. Add at least three more points to the graph and label them with their coordinates.
d. Write an equation that represents the relationship between C, the total cost of the
subscription, and m, the number of months.
2. The graph shows the amounts of almonds, in grams, for different amounts of oats, in
cups, in a granola mix. Label the point (1, k) on the graph, find the value of k, and
explain its meaning.what does the constant of proportionality tell us about the situation?