Test - Proportional Relationships

Front

What is the constant of proportionality in the equation y = 7x?

Back

7

Front

It cost me $52.50 to fill my 15-gallon gas tank. What is the unit rate?

Back

$3.50 per gallon

Front

What equation represents the relationship between the cost, c, and the gallons of gas, g, if it costs $52.50 for 15 gallons?

Back

c = 3.50g

Front

What does it mean if a graph is proportional?

Back

A proportional graph passes through the origin and shows a constant ratio between two variables.

Front

Is the graph of y = 2x proportional?

Back

Yes, it is proportional.

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together, expressed as a quantity of one.

Front

If Cody makes 15 cakes per day and Dean makes 14 cakes per day, who makes more cakes?

Back

Cody makes more cakes per day.

Front

What is the unit rate if a car travels 240 miles in 4 hours?

Back

60 miles per hour.

Front

How do you determine if a relationship is proportional?

Back

Check if the ratio of the two quantities is constant.

Front

What is the equation for a proportional relationship?

Back

y = kx, where k is the constant of proportionality.