Pre-Calculus Go over homework Notes: Increasing and Decreasing

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

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).

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

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

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