2.5 Compare Proportional Relationships

Front

What does the point (2, 94) represent in a savings context?

Back

After 2 weeks, they save $94.

Front

How do you determine the unit rate from a graph?

Back

The unit rate is the slope of the line, representing the amount saved or gained per unit of time.

Front

What is the unit rate in the context of speed?

Back

60 miles/1 hour.

Front

What characteristics define a proportional graph?

Back

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

Front

What is the constant of proportionality in a speed context?

Back

The constant of proportionality is the speed in miles per hour.

Front

How can you identify a proportional relationship from a table of values?

Back

If the ratio of the values remains constant, the relationship is proportional.

Front

What is the formula for calculating the unit rate?

Back

Unit Rate = Total Amount / Total Units.

Front

What does it mean for two quantities to be proportional?

Back

Two quantities are proportional if they maintain a constant ratio.

Front

How can you graph a proportional relationship?

Back

Plot the points on a coordinate plane and draw a straight line through the origin.

Front

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

Back

The origin (0,0) indicates that when there is no input, there is no output, reflecting a direct relationship.