Question

The following curve represents rate of change of a variable y wrt x.the change in the value of y when x changes from 0 to 11 is
A.60
B.25
C.35
D.85

Answer 1

Answer:

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Explanation:

Solution

As dy=(dydx)dx So Δy=∫dy=∫110(dydx)dx

Area under the curve

A1=12×6×20=60

A2=-12×(11-6)(10)=-25

Δy=A1+A2=60-25=35