For each problem, approximate the area under the curve over the given Interval using 4 left endpoint rectangles. 1) y - - +1; [0, 4] For each problem, approximate the area under the curve over the given Interval using 4 midpoint rectangles, 2) -7-1+1; [2, 6] For each problem, approximate the area under the curve over the given Interval using 4 right endpoint rectangles. 3 ) 3 - 2 x+1; [-2 2] For each problem, approximate the area under the curve over the given interval using 4 inscribed rectangles. 4) >- - 1-6,-2) For each problem, approximate the area under the curve over the given interval using 4 trapezolds. 5) y- - - [-6, -2]