Ratios | Rates | Tables & Graphs !

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What is a ratio?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

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How do you calculate the price per unit?

Back

To calculate the price per unit, divide the total price by the number of units. For example, if you pay $15 for 6 gallons, the price per gallon is $15 ÷ 6 = $2.50.

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What is a proportional relationship?

Back

A proportional relationship is when two quantities maintain a constant ratio or rate. This means that as one quantity increases, the other quantity increases at a consistent rate.

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What does it mean if a graph goes through the origin?

Back

If a graph goes through the origin (0,0), it indicates a proportional relationship, meaning that when one quantity is zero, the other quantity is also zero.

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What is a non-proportional relationship?

Back

A non-proportional relationship is when two quantities do not maintain a constant ratio. This means that the relationship between the quantities changes.

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How can you identify a non-proportional graph?

Back

A non-proportional graph will not pass through the origin or will have a curve that does not maintain a constant slope.

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What is a ratio table?

Back

A ratio table is a tool used to organize pairs of numbers that have a constant ratio, making it easier to see relationships between the quantities.

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How do you complete a ratio table?

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To complete a ratio table, you can use multiplication or division to find missing values that maintain the same ratio as the other pairs.

Front

What is a rate?

Back

A rate is a specific kind of ratio that compares two different units, such as miles per hour or price per item.

Front

How do you determine if a relationship is proportional using a table?

Back

To determine if a relationship is proportional using a table, check if the ratios of corresponding values are equivalent.