What is the derivative of # 2x-1#? Calculus Basic Differentiation Rules Power Rule 1 Answer Guilherme N. Jun 4, 2015 The power rule states that if #y=a^n#, #y'=n*a^(n-1)#. Also, there's no derivative for constant, so it's zero, because there's no variation to de derivated. #(dy)/(dx)=2# Answer link Related questions How do you find the derivative of a polynomial? How do you find the derivative of #y =1/sqrt(x)#? How do you find the derivative of #y =4/sqrt(x)#? How do you find the derivative of #y =sqrt(2x)#? How do you find the derivative of #y =sqrt(3x)#? How do you find the derivative of #y =sqrt(x)#? How do you find the derivative of #y =sqrt(x)# using the definition of derivative? How do you find the derivative of #y =sqrt(3x+1)#? How do you find the derivative of #y =sqrt(9-x)#? How do you find the derivative of #y =sqrt(x-1)#? See all questions in Power Rule Impact of this question 3398 views around the world You can reuse this answer Creative Commons License