Download presentation
Presentation is loading. Please wait.
Published byMalcolm Joseph Modified over 8 years ago
1
The End is just around the corner! There are only a few opportunities left to impact your grade.
2
Retake your Lowest Unit Test Grade Reviews will be available online and in class by Friday Retakes will be in class on Tuesday 11/30 Review MUST be finished and turned in the day of retest 6 week, 12 week tests and daily grades are not eligible for retake
3
2.4 Solve Polynomial Inequalities
4
Interval Notation a b b a a b a b a a b b
5
Solve and graph on a number line.
6
Example 1: Solve x 3 – 3x 2 > 10x algebraically Step 1: Rewrite as an equation, and put in standard form. Step 2: Solve for x (we can factor)
7
Example 2 Cont’d: Plotting our found x-values will help us find our intervals. This breaks our number line into 4 intervals. Test an x-value in each interval to see if it satisfies the inequality Does NOT work WORKS Does NOT work (-2, 0) (5, ∞ )
8
You Try: Solve the inequality algebraically 1. -3x 3 + 10x 2 < - 8x
9
You Try: Solve the inequality algebraically 1. -3x 3 + 10x 2 < - 8x
10
2.4 Solve Polynomial Inequalities
11
Interval Notation a b b a a b a b a a b b
12
Example 1: Solve 2x 3 + x 2 – 6x < 0 by graphing. Graph and find your zeros x = -2, 0, 3/2 (-∞, -2] and [0, 3/2]
13
You Try: Solve the inequality using a graph 1. 2x 3 + 8x 2 > - 6x
14
Solve and graph on a number line.
16
Assignment Page 83 and 84 #1-17 odd on both
Similar presentations
© 2024 SlidePlayer.com. Inc.
All rights reserved.