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The table of values represents a function ​f(x).

How much greater is the average rate of change over the interval [9, 10] than the interval [5, 8] ?

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The table of values represents a function ​f(x).


How much greater is the average rate of change over the interval [9, 10] than the interval [5, 8] ?

x f(x)

5 75

6 202

7 549

8 1491

9 4052

10 11,014





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Respuesta :

Answer:

The average rate of change over the interval [9,10] is greater than that over the interval [5,8] by 6490.

Step-by-step explanation:

The value of f(x) = 4052 for x = 9 and f(x) = 11014 for x = 10.

Therefore, the average rate of change of f(x) with respect to x over the interval [9,10] is given by  

= [tex]\frac{\textrm {Total change in value of f(x)}}{\textrm {Total change in value of x}}[/tex]

= [tex]\frac{11014 - 4052}{10 - 9} = 6962[/tex]

Now, the value of f(x) = 75 for x = 5 and f(x) = 1491 for x = 8.

Therefore, the average rate of change of f(x) with respect to x over the interval [5,8] is given by

= [tex]\frac{\textrm {Total change in value of f(x)}}{\textrm {Total change in value of x}}[/tex]

= [tex]\frac{1491 - 75}{8 - 5} = 472[/tex]

Therefore, the average rate of change over the interval [9,10] is greater than that over the interval [5,8] by (6962 - 472) = 6490. (Answer)