(1) Graph the following inequalities: Line 1: x + 3y S 21 Line 2: x + y $9 Line 3: 3x + y $ 19 Line 4: x 20 Line 5: y 2 0 (2) Shade the overlapping region (the feasible set) (3) Determine the coordinates of each of the vertices (corners) of the feasible set. Show your work Upload a scan (in a pdf format) or a picture of your work. Make sure your work is neat and legible. Rough work (i.e. work with scribbles, of things crossed out, or a graph made without using a ruler) will not be graded