Originally Posted by
jmailloux I have to graph this function as part of my math assignment for calculus.
f(x) = x2 (supposed to be x squared) - 2x - 15
x + 3
** it's x squared minus 2x minus 15 all over x+3
i know that it is a straight line with a hole in it at x= -3. However, i just want to make sure i have all the steps correct in coming up with this answer. And even though it's a straight line, i need to determine f'(x) and f''(x) to find critical points and intervals of concavity and inflection point.
Any help at all would be much appreciated.. thank-you very much