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In this lesson, we will learn how to find the average rates of change and secant lines, which are the equivalent geometric definition of the average rates of change.

Q1:

The distance travelled by a body in π‘ seconds is π = 5 π‘ + 3 π‘ + 7 2 . What is the average rate of change of π when π‘ changes from 9 to 13 seconds?

Q2:

Consider the function π ( π₯ ) = οΉ π₯ β 7 5 π₯ ο 5 0 3 . What is the average rate of change in π ( π₯ ) over the interval [ 2 , 4 ] ?

Q3:

Find the average rate of change in the volume of a cube when its side length changes from 8 cm to 9.5 cm.

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