Use the concept of circumscribed rectangles (outside, using right
endpoints) to find the area bounded between the function [graph]
f(x) = x2+8x+19 and the x axis from the point x=a = -7 to x=b = -1.
Use the summation process of
n
Area = ? f(xi) ?x.
i =1
let n = 6 so ?x = (b-a) =1, here a =-7, b=-1, and xi = a+i?x





