The constant of proportionality is found by determining the ratio of the change in the y-values to the change in the x-values. In this case, the change in y-values is 24 - 18 = 6 and the change in x-values is 6 - 0 = 6.
Therefore, the constant of proportionality is 6/6 = 1.
A grocery store sells sliced cheddar cheese by weight. The relationship between the amount of cheddar cheese in pounds, x, and the total cost in dollars of the sliced cheddar cheese, y, is represented by the graph below.
What is the constant of proportionality as shown in the graph?
0
Number of Pounds
Total Cost (in dollars)
x
y
0
Number of Pounds
Total Cost (in dollars)
(6 , 24)
6
18
24
4
1 answer
1 answer