#### Answer

The derivative is 1.

#### Work Step by Step

When two or more functions are being added or subtracted, the derivative of the function is the derivative of every "mini" function being added or subtracted; hence the derivative of f(x) is equal to (the derivative of x) + (the derivative of 11). The derivative of x being 1 and the derivative of 11 being 0, we get the overall derivative to be 1.