1. Pre-Calculus Go over homework Notes: Increasing and Decreasing
-need a graphing calculator(leave id).
Homework

2. Increasing/Decreasing
Can visually determine if a function is increasing, decreasing, or constant.
A function is:
increasing on an interval if, for any two points in the interval, a positive change in x results in a positive change in f(x).
decreasing on an interval if, for any two points in the interval, a positive change in x results in a negative change in f(x).
constant on an interval if, for any two points in the interval, a positive change in x results in a zero change in f(x).

3. ( - ∞, - 5 ) υ ( - 1, 2 )
(- 3, - 1 ) υ ( 2, ∞ )
(- 5, - 3 )

4. ( 1, ∞ )
( - ∞, ) υ ( 3.464, ∞ )
( - ∞ , 1 )
( , - 2 ) υ( - 2, 2 )υ( 2, 3.464)
none
none

5. ( - ∞, 2 )
( 1, ∞ )
( 4 , ∞ )
( - ∞, -1 )
(2, 4 )
(-1, 1 )