Increasing and Decreasing Intervals

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Taught by TheMathDude
  • Currently 5.0/5 Stars.
8353 views | 1 rating
Lesson Description:

Understand what the terms increasing and decreasing mean with regards to a relationship. In particular, be clear on how demand and supply relationships work (i.e. are they increasing or decreasing, strictly or over only parts of the domain).

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Additional Resources:
Questions answered by this video:
  • What are some characteristics of supply and demand functions?
  • What are increasing and decreasing functions and intervals?
  • What are supply and demand functions?
  • What is the definition of an increasing or decreasing function?
  • What is a monotonic function?
  • What does it mean for a function to be strictly increasing or strictly decreasing?
  • How can you tell where a function is increasing or decreasing from a table of values?
  • How can you tell if an exponential or logistic function is increasing or decreasing from functional notation?
  • What is a constant function?
  • Why are exponential and logistic functions either always increasing or always decreasing?
  • Where does a quadratic function go from increasing to decreasing or vice versa?
  • How can you tell where a quadratic function is increasing or decreasing from functional notation?
  • How can you tell where a function is increasing, decreasing, or constant from a graph?
  • Why are demand functions always decreasing?
  • Why are supply functions always increasing?
  • Staff Review

    • Currently 5.0/5 Stars.
    This lesson explains increasing and decreasing functions and intervals and uses some of the most famous functions of this type: supply and demand curves. All terms and definitions are discussed and explained in the many web / document resources for this lesson. This is a very useful and helpful lesson for learning about increasing and decreasing functions.