Which two quantities are being compared?
The elapsed time and the height of the fallen snow.
Which quantity is the independent variable? Which quantity is the dependent variable?
Time is independent and the snow height is dependent. The height of the snow depends on the amount of time that has elapsed.
Is this relationship proportional? How do you know?
Yes; the ratio of the height to the time is the same for each pair of values in the table.
How can you determine how much snow fell each hour during this storm?
Divide the height of the snow by the number of hours for that height.
Does it matter which pair of values you use to find the rate at which the snow fell?
How much snow fell each hour during this storm?
What is the constant of proportionality? How do you know?
4 inches per hour; the constant of proportionality is the unit rate.
What equation can you write to represent the relationship between the time and the height of the fallen snow?
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