What is the first derivative of f(x)=4x ?

The first derivative of f(x)=4x is 4

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derivative of f(x)=4x

derivative of

f (x) = 4 x

4

Solution steps

\frac{d}{d x} (4 x)

Take the constant out:

(a \cdot f)^{'} = a \cdot f^{'}

= 4 \frac{d x}{d x}

Apply the common derivative:

\frac{d x}{d x} = 1

= 4 \cdot 1

Simplify

= 4

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