### Home > PC3 > Chapter 3 > Lesson 3.2.4 > Problem3-134

3-134.

Let $f ( x ) = \sqrt { x ^ { 2 } + 5 }$

1. Graph the function for $1\le x\le6$.

This is not a parent function, so use a graphing calculator to generate the curve.

2. Approximate the area under the curve over the given interval by using both five left endpoint rectangles and five right endpoint rectangles.

$\text{L}=1(f(1)+\dots+f(5))$

$\text{R}=1(f(2)+\dots+f(6))$