1. Find the value of > 0 that will work for any > 0. In other words, you are proving the limit statement by finding the > 0.

2. a) State either the formal limit definition of the derivative or the alternative limit formula for the derivative. Either one is okay.

b. Using the definition that you chose in part a, find the derivative of f(x)=x²-2x. You may only answer this question by using the limit definition of the derivative.