12.7 Graphing Proportional Relationship

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 can you identify a proportional graph?

Back

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

Front

What does it mean if a graph is non-proportional?

Back

A non-proportional graph does not pass through the origin and does not maintain a constant ratio between the two quantities.

Front

What is the constant of proportionality?

Back

The constant of proportionality is the ratio of the two quantities in a proportional relationship, often represented as 'k'.

Front

If y = kx, what does 'k' represent?

Back

'k' represents the constant of proportionality in the equation of a proportional relationship.

Front

How do you determine if a table of values represents a proportional relationship?

Back

If the ratio of y to x is constant for all pairs of values in the table, it represents a proportional relationship.

Front

What is the formula for finding the unit rate?

Back

The unit rate is found by dividing the total amount by the number of units, expressed as 'amount per unit'.

Front

How do you compare two different unit prices?

Back

To compare unit prices, calculate the price per unit for each option and compare the values.

Front

What is an example of a proportional relationship in real life?

Back

An example is the relationship between distance and time when traveling at a constant speed.

Front

What does it mean if two quantities are not proportional?

Back

If two quantities are not proportional, their ratios are not constant and may vary.