inequalities day 1 worked
Post on 08-Jan-2017
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Homework QuestionsTalk to your neighbor about trouble problems while I hand out books!Get out info sheets and signed syllabus…
Before we get started…
Homework situation Learning Targets
What do we need to do in order to do well this unit?
Unit 1Solving Inequalities
Interval Notation
Interval Notation can contain union of sets with the union symbol
Graph some examples
1. (3, ∞)
2. [-2, ∞)
3. (- ∞, ∞)
4. [-4, 7)
5. (-14, 2]
Now go backwards Write the interval notation for the following:
A)
B)
C)
D)
E)
F)
Sign Charts
Solve 2 4 0x
Sign Charts
2 5 6 0x x 24 8 5 0x x
Sign Charts
2 2( 3)( 1)( 4) 0x x x 24 7 2x x
Sign Charts
2 2( 3)( 1)( 4) 0x x x 2 2( 3)( 1)( 4) 0x x x
Would I want to use sign charts here?
3 5 2 4x 6 4 1 0x
Homework
P. 265 (7-14, 21-24) Solve all using sign charts!
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