1. Given the function f(x)=x-2x+6 on the x-interval [0,3], perform the following: 9 2 -8 7 3 6 -5 A -3 2 a. Using n = 3 rectangles and a left side approximation on the x-interval [0,3], find Axand then draw the rectangles on the graph. - b. Approximate the area bounded by f(x)=x-2x+6 on the x-interval [0,3] using n = 3 rectangles and a left side approximation. Rectangle # 1 x-interval Width Height Area