4. Lucky used different approximation techniques to approximate sdf(x)dx . She found that Left(5) = 5, Right(5) = 3, Mid(5) = 4, Trap(5) = 3.2. The true value of the integral is 3.8111 Answer the following. a. Find simp(10). Keep in mind how we defined Simpson's rule. b. Does the function appear to be increasing or decreasing? Justify. (no justification = no credit) C. Does the function appear to be concave up or down? Justify. (no justification = no credit) d. Approximate the error in Left(25) 4. Lucky used different approximation techniques to approximate sdf(x)dx . She found that Left(5) = 5, Right(5) = 3, Mid(5) = 4, Trap(5) = 3.2. The true value of the integral is 3.8111 Answer the following. a. Find simp(10). Keep in mind how we defined Simpson's rule. b. Does the function appear to be increasing or decreasing? Justify. (no justification = no credit) C. Does the function appear to be concave up or down? Justify. (no justification = no credit) d. Approximate the error in Left(25)