Question

Megan and Suzanne each have a plant. They track the growth of their plants for four weeks. Whose plant grew at a faster rate, and what was the rate?

Suzanne’s at 2 inches per week

Suzanne’s at 1.5 inches per week

Megan’s at 3 inches per week

Megan’s at 2.5 inches per week

Answer 1

Megan's at 2.5 inches per week

Explanation:

Megan and Suzanne each have a plant. They track the growth of their plants for four weeks.

By looking at the graphs, we can calculate the slope.

Megan's plant growth rate =
`(12-4.5)/(4-1) =(7.5)/(3)= 2.5` inches per week.

Suzanne's plant growth rate =
`(11-5)/(4-1) =(6)/(3)=2` inches per week.

We can see that Megan's plant has a faster rate.

Answer: Megan’s at 2.5 inches per week

Answer 2

In science, rate is a quantity measured with respect to another measured quantity. For the data given, we get the rate of each by calculating the slope. We do as follows:

Megan's rate = 12 - 4.5 / 4 -1 = 2.5 inches per week
Suzanne's rate = 11 - 5 / 4-1 = 0.5 inches per week

Therefore, the plant that grew at a faster rate would be Megan’s at 2.5 inches per week.