IXL - Average rate of change II (Calculus practice)

Find the average rate of change of

(

)

between

and

where

≠

Simplify your answer. Your answer may be a number or an expression in terms of

ref_doc_title.

Learn with an example

question

Find the average rate of change of

(

)

between

and

where

≠

Simplify your answer. Your answer may be a number or an expression in terms of

key idea

The average rate of change of a function

(

)

between

and

is:

(

)

–

(

)

–

It is the slope of the line that passes through

(

)

and

(

)

This line is called a secant

line.

solution

To find the average rate of change, first evaluate

(

)

and

(

)

(

)

(

)

Find the average rate of change between

and

(

)

–

(

)

–

(

)

–

(

)

Cancel

The average rate of change is

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$Confetti$

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F.1Average rate of change I

M.8Evaluate a function: plug in an expression

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