Find the sum of the areas of the shaded rectangles under the graph. [Hint: The width of each rectangle is the difference between the x-values at its base. The height of each rectangle is the height of the curve at the left edge of the rectangle.] y 16H 14 8x || 12 y 10 8 6 4 2 1 1.25 1.5 1.75 x 2 ①

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.4: Definition Of Function
Problem 51E
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The sum of the areas of the rectangles approximates the area under the curve, though not very well. Notice that every rectangle extends above the curve
f(x) = 
8
x
,
and hence the rectangles provide an overestimate of the area.
To find the areas of the rectangles, we recall (or look up in the text) the formula for the area of a rectangle:
A =
where h is the height and w is the width.
We will need the width and height of each rectangle.
Find the sum of the areas of the shaded rectangles under the graph. [Hint: The width of each rectangle is the
difference between the x-values at its base. The height of each rectangle is the height of the curve at the left edge
of the rectangle.]
y
16H
14
8x
||
12
y
10
8
6
4
2
1 1.25 1.5 1.75
x
2 ①
Transcribed Image Text:Find the sum of the areas of the shaded rectangles under the graph. [Hint: The width of each rectangle is the difference between the x-values at its base. The height of each rectangle is the height of the curve at the left edge of the rectangle.] y 16H 14 8x || 12 y 10 8 6 4 2 1 1.25 1.5 1.75 x 2 ①
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