### Home > CALC > Chapter 3 > Lesson 3.4.2 > Problem3-163

3-163.

Write and evaluate a Riemann sum to estimate $A(y, 1 ≤ x ≤ 8)$ for $y = \frac { 4 } { x }$ with $10$ left endpoint rectangles.

General setup for left endpoint Riemann sum:

$Δx$ will be a fraction.