Suppose that f is a function given as f(x)=-7x+2. We will compute the derivative of f at x=3 as follows.First, we will compute and simplify the expression f(3+h).f(3+h)=3+hIncorrect Then we compute and simplify the difference quotient between x=3 and x=3+h .f(3+h)-f(3)h =The derivative of the function at x=3 is the limit of the difference quotient as h approaches zero.f(3)=limh0 f(3+h)-f(3)h =