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Oduvanchick [21]
3 years ago
14

If ,f(x)=3x-6/x-2 what is the average rate of change of f(x) over the interval [6, 8]?

Mathematics
2 answers:
sukhopar [10]3 years ago
4 0
I hope this helps you



f (x)= 3 (x-2)/(x-2)


f (x)= 3


f(6)= 3


f (8)= 3
enyata [817]3 years ago
3 0

Answer:

the average rate of change of f(x) over the interval [6, 8] is, 0

Step-by-step explanation:

Average rate of change (A(x)) of f(x) over interval [a, b] is given by:

A(x) = \frac{f(b)-f(a)}{b-a}       ....[1]

As per the statement:

Given the function:

f(x) = \frac{3x-6}{x-2}

At x = 6

f(6) = \frac{3(6)-6}{6-2}=\frac{18-6}{4}=\frac{12}{4} =3

⇒f(6) = 3

At x = 8

f(8) = \frac{3(8)-6}{8-2}=\frac{24-6}{6}=\frac{18}{6} =3

⇒f(8) = 3

We have to find the average rate of change of f(x) over the interval [6, 8]

Substitute the given values in [1] we have;

A(x) = \frac{f(8)-f(6)}{8-6}=\frac{3-3}{2}=\frac{0}{2} = 0

Therefore, the average rate of change of f(x) over the interval [6, 8] is, 0

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