Question

find the derivative of -4

Answer 1

Derivative of -4 is 0

$let \: \: \: \: y = - 4 \\ \frac{dy}{dx} = \frac{d( - 4)}{dy} \\ \frac{dy}{dx} = 0$

-4 is constant so it's derivative is 0 .

Hope it will help you .

Answer 2

-4 is a constant derivation of constant is zero.