Answer:
Explanation:
Find the Rate of Change
The rate of change = Δy/Δx
(20 - 16) / (8 - 6) = 4/2 = 2 gal / minutes
Slope and Graph
The graph is given below. It shows the various points plotted and labeled.
The box near the y axis should be labeled gallons [in the tank]
The box under the x axis (if you have such a thing) should be labeled Time in minutes.