For the following exercises, consider the function f ( x ) = | x | . 25. Use the preceding exercise to find the exact value of the area between the x-axis and the graph of f over the interval [-1, 2] using rectangles. For the rectangles, use the square units, and approximate both above and below the lines. Use geometry to find the exact answer.
For the following exercises, consider the function f ( x ) = | x | . 25. Use the preceding exercise to find the exact value of the area between the x-axis and the graph of f over the interval [-1, 2] using rectangles. For the rectangles, use the square units, and approximate both above and below the lines. Use geometry to find the exact answer.
For the following exercises, consider the function
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.
25. Use the preceding exercise to find the exact value of the area between the x-axis and the graph of f over the interval [-1, 2] using rectangles. For the rectangles, use the square units, and approximate both above and below the lines. Use geometry to find the exact answer.