Answer:
k = y/x
Step-by-step explanation:
The constant rate on a data table can be calculated by dividing the y-value by the respective x-value. So, the answer is:
k = y/x
For example, in the following table:
x y
3 9
6 18
9 27
The constant rate k will be equal to 3 because:
9/3 = 3
or
18/6 = 3
or
27/9 = 3