### Home > CALC3RD > Chapter Ch1 > Lesson 1.3.3 > Problem1-127

1-127.

Let $f(x) = x^2 - x - 6$. Approximate the area under the curve for $−2 ≤ x ≤ 3$ using ten left endpoint rectangles. 1-127 HW eTool (Desmos). Homework Help ✎

Find the sum of the areas of all $10$ rectangles. What is the width of each rectangle? How can you calculate the height of each one?

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