Topic 2 Proportional Relationships Practice test

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 determine if two quantities are proportional?

Back

You can determine if two quantities are proportional by checking if every ratio of y/x for related pairs of x and y is equivalent.

Front

What is unit cost?

Back

Unit cost is the cost for one unit of a product, calculated by dividing the total cost by the number of items.

Front

How do you find the unit cost?

Back

Divide the total cost by the number of items.

Front

What does it mean if the ratios of y/x are not equivalent?

Back

If the ratios of y/x are not equivalent, then the two quantities are not proportional.

Front

If x = 5 and y = 6, is this a proportional relationship?

Back

Yes, because the ratio y/x = 6/5 is constant.

Front

What is the formula for finding speed?

Back

Speed = Distance / Time.

Front

Lilly typed a 54 word paragraph in 3/4 of a minute. What is her speed in words per minute?

Back

72 words per minute.

Front

What is the significance of equivalent ratios in proportional relationships?

Back

Equivalent ratios indicate that two quantities maintain a constant relationship, confirming they are proportional.

Front

If x increases by 1 and y increases by $1.75, are x and y proportional?

Back

No, because the ratio of y/x is not constant.