1. (16 points) Look at the graph above and answer the following using only limits. (Do not use any of the rules of differentiation we did in class) (a) (5 points) Calculate lim J(1 + h) - S(1) h-+0 h This is the left hand limit of the differ ence quotient at = = 1 (b) (8 points) Calculate lim S(1 +h) - S(1) h This is the right hand limit of the dif- ference quotient at r = 1