U3 T1 Flashcard Review : Proportional Relationships

Front

What is a proportional relationship?

Back

A proportional relationship is a relationship between two quantities where the ratio of one quantity to the other quantity is constant.

Front

How do you determine if two quantities are proportional?

Back

Two quantities are proportional if they can be expressed as a constant ratio or if their graph is a straight line that passes through the origin.

Front

What is the constant of proportionality?

Back

The constant of proportionality is the constant ratio (k) in a proportional relationship, represented as k = y/x.

Front

If a slurpee costs $0.25 per ounce, how much does it cost for 10 ounces?

Back

It costs $2.50 for 10 ounces.

Front

What is the formula to find the total cost in a proportional relationship?

Back

Total Cost = Cost per unit × Number of units.

Front

How can you represent a proportional relationship using a table?

Back

A table representing a proportional relationship will show pairs of values (x, y) where the ratio y/x is constant.

Front

What does the slope of a line represent in a proportional relationship?

Back

The slope of a line in a proportional relationship represents the constant of proportionality.

Front

How do you graph a proportional relationship?

Back

To graph a proportional relationship, plot points that represent the pairs of values and draw a straight line through the origin.

Front

What is the relationship between distance and time in a constant speed scenario?

Back

In a constant speed scenario, distance is directly proportional to time, represented by the equation d = rt, where r is the rate.

Front

If you walk at a speed of 3 feet per second, how far will you walk in 10 seconds?

Back

You will walk 30 feet in 10 seconds.