Unit Rate on Graphs, Tables and Equations

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together. It expresses how much of one quantity corresponds to one unit of another quantity.

Front

What does a proportional relationship look like on a graph?

Back

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

Front

What is the constant of proportionality?

Back

The constant of proportionality is the ratio between two proportional quantities, often represented as 'k' in the equation y = kx.

Front

How do you find the unit rate from a table?

Back

To find the unit rate from a table, divide the value of one quantity by the value of the other quantity for each row.

Front

What does the ordered pair (0,0) represent?

Back

The ordered pair (0,0) represents the origin on a graph.

Front

What is the equation of a line that shows a proportional relationship?

Back

The equation of a line that shows a proportional relationship is in the form y = kx, where k is the constant of proportionality.

Front

How can you identify a proportional relationship from a set of data points?

Back

A proportional relationship can be identified if the ratio of y to x is constant for all data points.

Front

What does the slope of a line represent in a proportional relationship?

Back

The slope of a line in a proportional relationship represents the constant of proportionality.

Front

If Taylor can write 100 words in 4 minutes, what is her unit rate?

Back

Taylor's unit rate is 25 words per minute.

Front

Which graph shows a proportional relationship?

Back

A graph that shows a proportional relationship is a straight line that passes through the origin.