1. Use DESMOS* or any other graphing facility (including paper pencil if you can scan your paper) to sketch a clear graph of if x3 If you use DESMOS, you may enter this function as shown in https://www.desmos.com/calculator/3zabdb3vgt and find the values of (by substitution) f(-.1)-f(0) a ) -.1-0 f(.1)-f(0) b ) .1-0 f (2.9)-f(3) c) 2.9-3 f (3.1)-f(3) d) 3.1-3