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4 votes
4 votes
Find the average rate of change of g(x) = 1x3 + 2 from x =
1 to x = 4

User Kevin Rood
by
3.0k points

1 Answer

14 votes
14 votes

Answer:

Step-by-step explanation:

Step-by-step explanation:

The

average rate of change

of g(x) over an interval between 2 points (a ,g(a)) and (b ,g(b) is the slope of the

secant line

connecting the 2 points.

To calculate the average rate of change between the 2 points use.

¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

a

a

g

(

b

)

g

(

a

)

b

a

a

a

−−−−−−−−−−−−−−−

g

(

6

)

=

6

2

6

+

3

=

33

and

g

(

4

)

=

4

2

4

+

3

=

15

Thus the average rate of change between (4 ,15) and (6 ,33) is

33

15

6

4

=

18

2

=

9

This means that the average of all the slopes of lines tangent to the graph of g(x) between (4 ,15) and (6 ,33) is 9

User Terrence Brannon
by
3.1k points