(1 point) Use a finite approximation to estimate the area between the x-axis and the graph of f(x) = 2x between x = 0 and x = 1. Using a lower sum with two rectangles of equal width: Using an upper sum with two rectangles of equal width: Using a lower sum with four rectangles of equal width: Using an upper sum with four rectangles of equal width:(1 point) Use a finite approximation to estimate the area between the x-axis and the graph of f(x) = 25 - x between x = -5 and x = 5. Using the midpoint rule with two rectangles of equal width: Using the midpoint rule with four rectangles of equal width