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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!