Problema Solution

Plant A is 18 inches tall after one week, 36 inches tall after two weeks, 56 inches tall after three weeks. Plants B is 18 inches tall after one week, 36 inches tall after two weeks, 54 inches tall after three weeks. Which situation represents a proportional relationship between the plants' height and number of weeks?

Answer provided by our tutors

For Plant A:

18/1 = 36/2 <> 56/3

For Plant B: 

18/1 = 36/2 = 54/3

The growth of Plant B represents a proportional relationship between the plants' height and number of weeks.