How do you find f'(x) using the definition

Zane Decker

Zane Decker

Answered question

2022-04-15

How do you find f'(x) using the definition of a derivative for f(x)=6x+2x?

Answer & Explanation

maggionmoo

maggionmoo

Beginner2022-04-16Added 16 answers

The derivative is
f(x)=limh0f(x+h)f(x)h=limh06(x+h)+2x+h6x2xh=
limh06+2x+hxh=6+2limh0x+hxh=6+2
limh0hh(x+h+x)=6+212x=6+1x

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