To find the constant of proportionality, we need to divide the values of Y by the corresponding values of X in the table.
For X = 25, Y = 20 => Y/X = 20/25 = 0.8
For X = 50, Y = 40 => Y/X = 40/50 = 0.8
For X = 100, Y = 80 => Y/X = 80/100 = 0.8
Since the ratio Y/X is the same for all values of X, the constant of proportionality is 0.8.
The cost of the manufacture a water bottle is a proportional relationship this relationship is shown in the table
X 0 , 25,50 100
Y 0,20,40,80
What is the constant of proportionality for the data table
1 answer