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alexdok [17]
3 years ago
13

Find the derivative of f(x) = 6x + 7 at x = 9

Mathematics
2 answers:
Ket [755]3 years ago
3 0

Answer:

f'(9) = 6

Step-by-step explanation:

f(x) = 6x+7

The derivative is

f'(x) = 6

Evaluated at  x=9

f'(9) = 6

Hitman42 [59]3 years ago
3 0

Answer:

6

Step-by-step explanation:

f(x) = 6x + 9

f'(x) = 6 at every point

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The best way to solve is by using elimination method.
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Multiply second equation by -1
20x = -58 - 2y
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Add equations.
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x = -3
Plug in -3 into one of the equations.
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The sum of two numbers is zero.
x + y = 0
y = -x

<span>Twice the smaller number subtracted from 3 times the larger number is 10.
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3 times the larger number: 3x

</span>Twice the smaller number subtracted from 3 times the larger number is 10. 
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Answer:

In triangle DEF:

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In the Figure as shown below :

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