. 1 3 5 r 9 11 13 15 . . . . (4 pts) Write the sum, 3 E + E a + E + usmg Sigma notation. You may write your 48 I53 80' nal answer directly. (12 pts) Consider the lnction f(x) = Ix + 3| 2. a. Sketch the graph of the function on the interval [42] (only the portion on the indicated interval). b. Find the net area bounded by the graph of fand the x axis on the interval [42] using Geometry. No points will be given for using other method. Shade the appropriate region(s) clearly in the graph above presented in part a. Make sure you communicate clearly what you are computing. Show your work. c. Find the same net area by evaluating an appropriate integral algebraically. No points will be awarded if evaluated using geometry as in part b. Show your work