For a certain type of sand, 1 cubic foot weighs 80 pounds.For a certain type of sand, 1 cubic foot weighs 80 pounds. Use the Ray tool to make a graph that shows the weight, w, of n cubic feet of this sand. Weight vs. Cubic Feet of Sand
The graph that we are about to plot is a weight vs cubic feet of sand graph. That means that the independent variable x is the weight, while the dependent variable y is the volume.
Thus, x/y = 80/1 Rearranging, y = x/80 --> use this equation to make a graph as shown in the attached picture.