Question

If the slope of a straight line is calculated using the equation, "m=(y2-y1)/(x2-x1)," what is the slope of the graph below?

Answer 1

Slope of the graph given is 0.375 in/day.

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