(Sponge) Proportional 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 can you identify a proportional graph?

Back

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

Front

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

Back

If a graph does not go through the origin, it indicates a non-proportional relationship.

Front

What is the unit rate?

Back

The unit rate is the ratio of two measurements in which the second quantity is one unit.

Front

If $100 is earned for each hour worked, what is the total earned for 5 hours?

Back

$500.

Front

What does a straight line on a graph indicate?

Back

A straight line indicates a constant rate of change between the two variables.

Front

If a graph shows that 200 words are written in 4 minutes, what is the writing rate per minute?

Back

50 words per minute.

Front

What is the significance of the slope in a proportional graph?

Back

The slope represents the constant rate of change between the two variables.

Front

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

Back

If the ratios of corresponding values are constant, the relationship is proportional.

Front

What does it mean if a graph is not linear?

Back

If a graph is not linear, it indicates that the relationship between the variables is not constant.