### Home > PC > Chapter 2 > Lesson 2.3.6 > Problem 2-143

2-143.

Too low, as rectangles will be under the curve.

Too high, as rectangles will be above the curve.

Left = 8.360, Right = 8.960

2-143.

Too low, as rectangles will be under the curve.

Too high, as rectangles will be above the curve.

Left = 8.360, Right = 8.960