Proportional Tables and Graphs

Front

What is a proportional relationship?

Back

A relationship where two quantities maintain a constant ratio.

Front

What does it mean if a graph is proportional?

Back

It means that the graph passes through the origin (0,0) and shows a straight line.

Front

What is a non-proportional relationship?

Back

A relationship where the ratio between two quantities is not constant.

Front

How do you find the unit rate from a given rate?

Back

Divide the total amount by the number of units.

Front

If 4 pounds of oranges cost $8, what is the unit rate?

Back

$2.00 per pound.

Front

What is the formula to determine if a table represents a proportional relationship?

Back

Check if the ratio of y to x is constant.

Front

What is the unit rate for $6 for 2 pounds of bananas?

Back

$3.00 per pound.

Front

How can you tell if a graph is non-proportional?

Back

If the line does not pass through the origin or is not straight.

Front

What is the definition of a unit rate?

Back

A comparison of two quantities where the denominator is always 1 unit.

Front

If a table shows (2, 4), (3, 6), (4, 8), is it proportional?

Back

Yes, because the ratio of y to x is constant (2:1).