4.1.2 Reflection & Practice (Pages 84-86)

Front

What is the growth rate of an oak tree that grows 10 feet in 4 years?

Back

2.5 feet per year

Tags

CCSS.HSF-LE.A.1B

Front

Where is the unit rate shown on a graph for a plant's growth?

Back

It is at the y-coordinate for each line when the x-coordinate is 1.

Tags

CCSS.8.EE.B.5

Front

How do you find the difference in height between two plants after a certain time?

Back

Find the unit rate for each plant and then subtract the heights.

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

Front

What is a proportional relationship?

Back

A relationship where two quantities maintain a constant ratio.

Tags

CCSS.7.RP.A.2A

Front

If TJ uses a ratio of 5 lemons to 1 cup of sugar, is this relationship proportional?

Back

No, the relationship is not proportional if the quantities do not maintain a constant ratio.

Tags

CCSS.7.RP.A.2A

Front

How do you calculate the unit rate from a graph?

Back

The unit rate is the slope of the line, representing the change in y over the change in x.

Tags

CCSS.8.EE.B.5

Front

What does it mean for a relationship to be proportional?

Back

It means that as one quantity changes, the other quantity changes at a constant rate.

Tags

CCSS.7.RP.A.2D

Front

If Plant A grows at a rate of 1.5 inches per week and Plant C at 3 inches per week, what is the difference in their heights after 15 weeks?

Back

15 inches per week.

Tags

CCSS.HSF.IF.A.2

Front

What is the formula for calculating growth rate?

Back

Growth Rate = (Final Height - Initial Height) / Time.

Front

How can you determine if a table of values represents a proportional relationship?

Back

Check if the ratios of corresponding values are constant.

Tags

CCSS.7.RP.A.2A