### Home > PC > Chapter 2 > Lesson 2.3.8 > Problem 2-170

2-170.

Suppose you know that adding up 100 left-endpoint rectangles for the function *f*(*x*) over the interval −2 ≤ *x* ≤ 6 gives a value of 9. What would you get if you added up 100 left-endpoint rectangles of the function *g*(*x*) = *f*(*x*) + 4 over the same interval? Homework Help ✎

Use the width and height of the additional area to calculate.