Finding Unit Rates Using Equations

This video tutorial teaches how to understand unit rates using equations. It begins with an introduction to unit rates and the constant of proportionality, followed by a discussion on the importance of maintaining the correct order of variables in equations. The tutorial then demonstrates how to create equations from a table showing the cost of snack packs, emphasizing the use of multiplication. It also covers how to verify these equations by substituting values and using division. The lesson concludes with a summary of the key points covered.

What is the term used to describe the consistent ratio in a unit rate example, such as the cost of milk per gallon?

• Proportional variable

• Variable constant

• Constant of proportionality

• Rate of change

When forming equations from a table, why is the order of variables important?

• It affects the accuracy of the equation.

• It changes the unit rate.

• It alters the constant of proportionality.

• It determines the type of operation used.

If the cost of one snack pack is $9, what would be the equation to represent the cost of S snack packs?

• D = 9S

• S = 9D

• S = D / 9

• D = S + 9

How can you verify the accuracy of an equation derived from a table of values?

• By checking if the equation is balanced.

• By substituting the values from the table into the equation.

• By ensuring the equation uses addition.

• By comparing it to a different table.

What operation is used when reading the table backwards to form an equation?

• Division

• Multiplication

• Subtraction

• Addition