I introduce the Definition of Area of a Plane. This is a special case of Riemann Sums where the width of the rectangles used to find the area of a plane bound by a function and the x-axis are all of equal width. Many examples are worked through.
This is part 2 of my video "Area of a Plane w/ Rectangles & Limit of Infinite Sums" Find free review test, useful notes and more at http://www.mathplane.com/ If you'd like to make a donation to support my efforts look for the "Tip the Teacher" button on my channel's homepage / profrobbob