Review Proportional Relationships Tables, Graphs & Equaitons

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 quantity is constant.

Front

What is the constant of proportionality?

Back

The constant of proportionality is the constant value (k) that relates two proportional quantities in the equation y = kx.

Front

How do you identify a proportional relationship from a table?

Back

A proportional relationship can be identified in a table if the ratios of corresponding values are constant.

Front

What does the graph of a proportional relationship look like?

Back

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

Front

What is the equation of a proportional relationship?

Back

The equation of a proportional relationship is typically written as y = kx, where k is the constant of proportionality.

Front

If y = 5x, what is the constant of proportionality?

Back

The constant of proportionality is 5.

Front

How do you find the unit rate from a given total cost and quantity?

Back

To find the unit rate, divide the total cost by the quantity.

Front

If Will spent $3.75 for 3 pounds of granola, what is the unit rate?

Back

The unit rate is $1.25 per pound.

Front

What does it mean if a graph is not a straight line?

Back

If a graph is not a straight line, it indicates that the relationship between the variables is not proportional.

Front

How can you determine if two quantities are proportional using a graph?

Back

Two quantities are proportional if the graph is a straight line that passes through the origin.