1 / 9

1.2

1.2. RATE OF CHANGE. Example:. Rate of Change of a Function. The average rate of change , or rate of change , of Q with respect to t over an interval is. Increasing and Decreasing Functions. If Q = f ( t ) for t in the interval a ≤ t ≤ b,

harken
Télécharger la présentation

1.2

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 1.2 RATE OF CHANGE

  2. Example:

  3. Rate of Change of a Function The average rate of change, or rate of change, of Q with respect to t over an interval is

  4. Increasing and Decreasing Functions If Q = f(t) for t in the interval a ≤ t ≤ b, • f is an increasing function if the values of f increase as t increases in this interval. • f is a decreasing function if the values of f decrease as t increases in this interval.

  5. Rates of Change for Increasing and Decreasing Functions If Q = f(t), • If f is an increasing function, then the average rate of change of Q with respect to t is positive on every interval. • If f is a decreasing function, then the average rate of change of Q with respect to t is negative on every interval.

  6. Graphs ofIncreasing and Decreasing Functions • The graph of an increasing function rises when read from left to right. • The graph of a decreasing function falls when read from left to right.

  7. Graphs ofIncreasing and Decreasing Functions Many functions have some intervals on which they are increasing and other intervals on which they are decreasing. These intervals can often be identified from the graph. Decreasing for -2 < x < 3 Increasing for x < -2 Increasing for x > 3

  8. Function Notation for the Average Rate of Change

  9. y = x2 (3, 9) Slope = 4 (-2, 4) Slope = -1 (1, 1) Average rate of change of f(x) on an interval is the slope of the dashed line (secant line) on that interval

More Related