Determining Proportional Relationships Using Tables

This video tutorial explains how to determine if ratios are proportional by using tables. It begins with an introduction to proportional ratios and their significance. The video then reviews the concept of ratios, highlighting common mistakes such as adding within ratios instead of multiplying. It provides examples using basketball game data from David and Vincent to illustrate how to check if ratios are proportional by finding a common multiplier. The tutorial concludes by reinforcing the method of determining proportionality through tables.

What is the key characteristic of proportional ratios?

• They are always less than 1.

• They have different values.

• They have equal values.

• They are always greater than 1.

How can you determine if two ratios are proportional?

• By dividing the numbers in the ratios.

• By adding the numbers in the ratios.

• By finding a common multiplier for both parts of the ratios.

• By subtracting the numbers in the ratios.

In David's example, what is the common multiplier that shows his ratios are proportional?

• 2

• 4

• 3

• 5

What was the issue with Vincent's ratios that made them non-proportional?

• The ratios were already equal.

• There was no common multiplier for both parts of the ratios.

• The numbers were too large.

• The numbers were negative.

Which of the following is true about non-proportional ratios?

• They are always equal.

• They cannot be made equal by multiplying both parts by the same number.

• They have a common multiplier.

• They can be made proportional by adding a constant.