M7 Ch 5 Review 2021

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 is constant.

Front

How do you find the unit rate?

Back

To find the unit rate, divide the total amount by the number of units. For example, if 10 pencils cost $2, the unit rate is $2 ÷ 10 = $0.20 per pencil.

Front

What does it mean if unit rates are not equal?

Back

If unit rates are not equal, it indicates that the relationship between the two quantities is not proportional.

Front

What is the equation of a line in slope-intercept form?

Back

The equation of a line in slope-intercept form is given by y = mx + b, where m is the slope and b is the y-intercept.

Front

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

Back

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

Front

What is the unit rate in dollars per item if 5 items cost $10?

Back

The unit rate is $10 ÷ 5 = $2 per item.

Front

If Shelby can decorate 3 ½ cupcakes in 15 minutes, how many cupcakes can she decorate in 1 hour?

Back

Shelby can decorate 14 cupcakes in 1 hour.

Front

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

Back

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

Front

What does the constant of proportionality represent?

Back

The constant of proportionality represents the ratio between two proportional quantities.

Front

How can you tell if a table shows a proportional relationship?

Back

A table shows a proportional relationship if the ratios of corresponding values are equal.