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weeeeeb [17]
3 years ago
7

Given the function f(x) = 4x - 2, explain and show how to find the average rate of change between x = 2 and x = 4.

Mathematics
1 answer:
zalisa [80]3 years ago
7 0

Answer:

The average rate of change between x = 2 and x = 4 is of 4.

Step-by-step explanation:

Average rate of change:

The average rate of change of a function f(x) in an interval [a,b] is given by:

A = \frac{f(b)-f(a)}{b-a}

In this question:

f(x) = 4x - 2, b = 4, a = 2

Thus:

f(b) = f(4) = 4(4) - 2 = 16 - 2 = 14

f(a) = f(2) = 4(2) - 2 = 8 - 2 = 6

Average rate of change:

A = \frac{f(b)-f(a)}{b-a}

A = \frac{14-6}{4-2}

A = \frac{8}{2}

A = 4

The average rate of change between x = 2 and x = 4 is of 4.

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If f(x) = 5x - 3 and g(x) = 2x + 9, determine<br> f(g(4)
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Answer:

82

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f(x) = 5x - 3

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3 years ago
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Step-by-step explanation:

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The sum of the angles of the triangle is 180°:

(x+13)+39+(180-(5x+4))=180\\\\x+13+39+180-5x-4=180\\\\-4x+48=0\\\\-4x+48+4x=0+4x\\\\48=4x

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1 year ago
Mark was thinking of a number. Mark doubles it, then adds 11 to get an answer of 52.6. What was the original number?
Artemon [7]

Answer:

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41.6 / 2 = 20.8

Mark was thinking of 20.8

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2 years ago
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