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Home > PC > Chapter 7 > Lesson 7.1.2 > Problem 7-31

7-31.

Write the sum for estimating  using left-endpoint rectangles. Determine if the estimate is an upper bound or lower bound. Justify your answer with a sketch of the curve showing a typical rectangle.

2. height

3. inside function

First quadrant curve, x axis scaled in tenths, from 0 to 5, concave up curve with approximate points at (1, comma 4), (1.9, comma 2), (2.8, comma 1.5), 10 vertical bars, left starting at 1, each width of 0.3, with top left vertex of each bar on the curve.