4.D. Area of a Plane Region

Area of a plane region can be found using function notation as well as creating rectangles (or any shape) underneath the function. In order to find the exact area, infinitely many rectangles are needed that are infinitely thin.
  • Key Terms
    • summation
    • limits
    • infinity
    • area
    • plane region

Essential Questions
  • How can the area of a plane region be estimated and found precisely?

Upper Sum
Lower Sum
Lower Sum