Find parametrizations for the surfaces in Exercises. (There are many ways to do these, so your answers may not be the same as those in the back of the book.)
Parabolic cap The portion of the paraboloid above the plane z = -2
1.2 Finding limits Graphically To find the limit graphically of a function you have to follow the function from both the positive side and from the negative side of the coordinate system towards the number x approaches. For example, For this function as x approaches -2, if you follow the function from both sides the limit equals 4. 1.3 Finding limits...