MATH 221 In-Class Exercises Names______________________________

 

1.  Find the linearization, L(x),  of  at the point x = 2.  Find the value of each of the following: .

2. Find the derivative, ,  of each of the following and evaluate .

3.  a) Graph  on a calculator and get rough estimates for the three roots.

     b) Using each of the estimates from part a) apply Newton’s Method two times each to get better approximations to each root.  Recall the Newton’s Method formula:

.

    c) You should not use guesses of 1 or -1 in Newton’s Method for this function.  Why not?

4.  a) Graph  using a calculator.

     b) Find using implicit differentiation.

     c) Find the equations of both tangent lines corresponding to x = 2.

     d) What is the slope of the tangent line at x = 0?

     e) At what points on the curve (give both x and y coordinates) is