Slope of the graph given is 0.375 in/day.
Step-by-step explanation:
- Step 1: Given equation to find slope, m = (y2-y1)/(x2-x1)
- Step 2: Identify four points x1, x2, y1, y2 in the graph.
Let x1 = 3.0 and x2 = 9.0. Corresponding points on the y-axis are y1 = 1 and y2 = 3.25
- Step 3: Substitute in the formula to find slope.
⇒ m = (3.25 - 1)/(9.0 - 3.0)
⇒ m = 2.25/6.0
⇒ m = 0.375 in/day