Which of the following is the first-step in getting the derivative using Four-Step-Rule?

Question

A. Every increment x and ∆x and y by ∆y.

B. Substitute y = f(x) and solve for ∆y.

C. Divide both sides of the equation by ∆x.

D. Determine the limit of both sides as ∆x approaches zero.

Answer 1

Every increment x and ∇x and y by ∇y.

Option A is correct.