1.2

• Average rate of change: $f(x_2)-f(x_1) /{x_2-x_1}$

  1. find the y-values of the function for the given interval.
  2. find the slope between these two points.
• If the graph of f has a positive rate of change, then the graph of f is increasing. Likewise, if the graph of f has a negative rate of change, then the graph of f is decreasing.
• Label the correct behavior for each graph.

  A) positive

  B) decreasing

  C) negative

  D) increasing

  
• Label the correct behavior for each graph.

  A) negative

  B) increasing

  C) positive

  D) decreasing