What is the derivative of 3x?

Answer 1

Let

y = 3x

y' = 3(x)'

y' = 3(x1)'

y' = 3[1x(1-1)]

y' = 3(1x0)

y' = 3(1 x 1)

y' = 3

In general:

y = xn

y' nx(n-1)