Proportional Relationships in tables, equations, and graphs

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 identify the constant of proportionality in a table?

Back

The constant of proportionality can be found by dividing the value of one quantity by the corresponding value of the other quantity.

Front

What is the equation of a proportional relationship?

Back

Front

If Elena bought 10 ounces of popcorn for $2.50, how much does it cost per ounce?

Back

$0.25 per ounce.

Front

What does it mean if a table does not represent a proportional relationship?

Back

It means that the ratio between the two quantities is not constant.

Front

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

Back

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

Front

What is the constant of proportionality if y = 3.5x?

Back

The constant of proportionality is 3.5.

Front

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

Back

Cost per unit = Total cost / Number of units.

Front

If the constant of proportionality is k = 15 gallons of water per minute, what does this mean?

Back

It means that for every minute, 15 gallons of water are used.

Front

How do you write an equation from a proportional relationship given a constant of proportionality?

Back