Extra Credit: (5 points) Let h be the function graphed below. Four students (I, II, III, and IV) approximated the area under the graph of h from = 0 to r = 2. They all used the same number of subintervals, but they each used a different method among the ones listed below. Here are their results I: 5.4 II: 5.7 III: 5.8 IV: 6.0 Which student used which method? Method I, II, III, or IV Brief Reason Trapezoid Method Right Endpoint Method Left Endpoint Method Midpoint Method