### Home > PC > Chapter 6 > Lesson 6.1.4 > Problem 6-64

6-64.

Estimate *A*(*f*(*x*) = , 1 ≤

*x*≤ 5) using 8 midpoint rectangles. Use sigma notation to show the sum of the areas. Homework Help ✎

Determine the width of each rectangle.

Find the midpoint for each rectangle.

*x*_{0} = 1.25, *x*_{1} = 1.75, ...

Use sigma notation to show the sum of the areas of the 8 rectangles.