Exploring Constant of Proportionality in Tables

The video tutorial reviews the concept of finding the constant of proportionality from tables, focusing on the magic fraction Y over X. It includes examples using miles per gallon and dollars per hour to illustrate the correct method of calculation, emphasizing the importance of identifying X and Y correctly.

What is the main topic of the review session?

• Solving quadratic equations

• Reviewing algebraic expressions

• Understanding the constant of proportionality

• Learning about fractions

Tags

CCSS.8.EE.C.7B

What is the purpose of the review session?

• To introduce new material

• To practice new problems

• To review material not understood in class

• To discuss the next test

What is the 'magic fraction' that should always be remembered?

• X over Y

• Y over X

• Z over Y

• X over Z

Tags

CCSS.3.NF.A.3A

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

In the table setup for miles per gallon, what should be placed on the left side?

• Dollars

• Gallons

• Hours

• Miles

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

What mistake did students commonly make on the test regarding the constant of proportionality?

• Dividing Y by X

• Multiplying values directly

• Adding values directly

• Subtracting values directly

Tags

CCSS.7.RP.A.2B

How do you determine which variable is X and which is Y in a table?

• Y comes before X alphabetically

• X comes before Y alphabetically

• X is always on the right

• Y is always on the left

Tags

CCSS.5.OA.B.3

What is the correct method to find the constant of proportionality?

• Subtracting X from Y

• Adding X and Y

• Dividing Y by X

• Multiplying X and Y

Tags

CCSS.7.RP.A.2B

In the first example, what is the constant of proportionality for 24 miles and 2 gallons?

• 2

• 6

• 24

• 12

Tags

CCSS.7.RP.A.2B

In the second example, what is the constant of proportionality for 24 dollars and 4 hours?

• 8

• 6

• 12

• 4

Tags

CCSS.7.RP.A.2B

In the second example, what are the headers of the table?

• Minutes and Seconds

• Hours and Dollars

• Days and Weeks

• Miles and Gallons