You can often be asked to state the range of values of x for which a given graph is increasing or decreasing. In the next video I take you through an example explaining increasing and decreasing functions and how to find the range of values for which it is increasing and decreasing.

Example: Find the range of values of x for which y is increasing.

  1. y = x^3 + 5x^2 - 8x + 1
Differentiation : Increasing & Decreasing Functions : ExamSolutions - youtube Video