7th Grade Ratios and Proportional Relationships

Front

What is a ratio?

Back

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

Front

What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity, often expressed as 'per'.

Front

How do you find the better buy when comparing prices?

Back

To find the better buy, calculate the unit price for each option and compare them. The option with the lower unit price is the better buy.

Front

What does it mean for a relationship to be proportional?

Back

A relationship is proportional if it can be represented by a straight line that passes through the origin (0,0) on a graph.

Front

What is the formula for calculating a unit rate?

Back

The formula for calculating a unit rate is: Unit Rate = Total Quantity / Number of Units.

Front

How can you determine if a graph represents a proportional relationship?

Back

A graph represents a proportional relationship if it is a straight line that passes through the origin (0,0).

Front

What is the difference between proportional and non-proportional relationships?

Back

Proportional relationships have a constant ratio and can be represented by a straight line through the origin, while non-proportional relationships do not.

Front

If 4 tickets cost $252, what is the price per ticket?

Back

The price per ticket is $63.00.

Front

What is the unit rate for traveling 120 miles in 2 hours?

Back

The unit rate is 60 miles per hour.

Front

What does it mean for a graph to be non-proportional?

Back

A non-proportional graph does not represent a constant ratio and does not pass through the origin.