Refer to the figure below Estimate the average rate of the c

Refer to the figure below. Estimate the average rate of the change from A to B and from A to C. (Assume that each point lies on a contour line. Round your answers to four decimal places.) A to B m/m A to C m/m

Solution

Solution:

It is given that contour interval = 60m

Position of point A on contour line = 400

since point B is lie on the contour line above 700 and it is also situated 2 position up

therefore position of B = 700

similerly position C lie on the 820 m given

Average rate of change from A to B = (7*60)/(700-400) = 420/300 = 1.4000

Average rate of change from A to C = 8*60/(820-400) = 480/420 = 1.1429

= 1.1429