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How do I find the derivative of f(x)= 7-2x?

0 votes

please help

derivative-of-a-function

asked Feb 11, 2014 in PRECALCULUS by anonymous Apprentice

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1 Answer

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Given f(x) = 7-2x

Remember the formula d/dx(constant) = 0

d/dx(x) = 1

f(x) = 7-2x

Apply derivative with respect of x on each side.

f'(x) = d/dx(7-2x)

= d/dx(7)-d/dx(2x)

= -2

f'(x) = -2

answered Feb 11, 2014 by ashokavf Scholar

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