To determine the constant of proportionality for the graph, we need to find the ratio of the change in the distance to the change in time.
In this case, the distance changes by 60 miles when the time changes by 1 hour.
Therefore, the constant of proportionality is 60 miles per hour.
Determine the constant of proportionality for the graph below.
Line starts at 1 hour to 60 miles
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