CPM Homework Help : CALC Problem 2-84

Write a Riemann sum for a general function $f(x)$ to estimate $A(f, 2 ≤ x ≤ 5)$ using $n$ left endpoint rectangles of equal width if:

Hint:

General form of left-endpoint Riemann Sum:

$n$ represents number of rectangles
$a$ represents starting value on the $x$ -axis
$b$ represents ending value on the $x$ -axis