Compare Proportional Relationships

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

How do you identify a proportional relationship from a graph?

Back

A proportional relationship can be identified from a graph if the line passes through the origin (0,0) and is straight.

Front

What is the formula for calculating the unit rate?

Back

The unit rate is calculated by dividing the total quantity by the number of units, expressed as 'quantity per unit'.

Front

If y = kx, what does 'k' represent?

Back

In the equation y = kx, 'k' represents the constant of proportionality, which indicates how much y changes for each unit change in x.

Front

What is the unit rate of 15 calories burned in 1 minute?

Back

The unit rate is 15 calories per minute.

Front

How do you compare two proportional relationships?

Back

To compare two proportional relationships, you can find their unit rates and see which one is greater.

Front

What does it mean if two quantities are directly proportional?

Back

If two quantities are directly proportional, as one quantity increases, the other quantity increases at a constant rate.

Front

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

Back

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

Front

If a dog runs at a speed of y = 6.5x, what does 'x' represent?

Back

'x' represents the time in seconds, and 'y' represents the distance in meters that the dog runs.

Front

How do you find the pace of a runner?

Back

The pace of a runner is found by dividing the total time taken by the number of laps run.