8) A table of values for h(f) on the interval [0, 10] is shown below. Use a left-endpoint rectangle approximation with four subintervals to estimate the value of ( h(t) or 0 2 5 9 10 h(0 3 9) A function y(x) is increasing and has upward concavity on the interval [-2, 3]. Would a trapezoidal approximation result in an over- or under-estimation of Jy(x)dx? 10) An area is approximated to be 14 in using a left-endpoint rectangle approximation method. A right- endpoint approximation of the same area is equal to 21 in . Assuming the same number of equal subdivision for all approximation methods, what would the result of a trapezoid approximation for the area