### Home > CALC > Chapter Ch2 > Lesson 2.2.2 > Problem 2-70

2-70.

Alter your sigma notation from problem 2-69 to estimate the area with 16 rectangles and use it to approximate the area. Were the results the same? Homework Help ✎

*n* represents number of rectangles.

Δ*x* represents width of each rectangle.*a* represents starting value on the *x*-axis.