What is the derivative of -x? Calculus Basic Differentiation Rules Power Rule 1 Answer Mika ยท YouDid Dec 16, 2014 Derivative of x would be 1. In this case, x is negative so it would be -1. We can see this easily: [-x]' = -[x]' = -1 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 2855 views around the world You can reuse this answer Creative Commons License