COP TEST REVIEW

Front

What is the constant of proportionality?

Back

The constant of proportionality (k) is the ratio of two proportional quantities. For example, if k = 5, it means that for every unit increase in one quantity, the other quantity increases by 5.

Front

How can you identify a proportional relationship in a graph?

Back

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

Front

If Belinda drove 21.5 miles on one gallon of gasoline, what is her unit rate?

Back

Belinda's unit rate is 21.5 miles per gallon.

Front

What does the ordered pair (1, 15) represent in a unit rate context?

Back

The ordered pair (1, 15) represents that for every 1 unit of the first quantity, there are 15 units of the second quantity.

Front

What is a proportional relationship?

Back

A proportional relationship is a relationship between two quantities where their ratio is constant.

Front

If k = 1/5, what does this indicate about the relationship between the two quantities?

Back

If k = 1/5, it indicates that for every 5 units of the first quantity, there is 1 unit of the second quantity.

Front

What is the significance of the origin in proportional graphs?

Back

The origin (0,0) is significant in proportional graphs because it indicates that when one quantity is zero, the other quantity is also zero.

Front

How do you calculate the constant of proportionality from a table of values?

Back

To calculate the constant of proportionality, divide the value of one quantity by the corresponding value of the other quantity.

Front

What is the formula for finding the unit rate?

Back

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

Front

What does it mean if a graph does not pass through the origin?

Back

If a graph does not pass through the origin, it indicates that the relationship is not proportional.