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Polynomial Functions Introduction

Investigating Polynomial Functions

Polynomial Division

Remainder & Factor Theorems

Polynomial Equations

Polynomial Inequalities

Rational Functions

Review&Test

UNIT 4 : POLYNOMIAL FUNCTIONS

LESSON 6: SOLVING POLYNOMIAL INEQUALITIES

Interval
Test Number	- 3	- 1	5
Sign of (x + 2)	( - )	( + )	( + )
Sign of (x – 4)	( - )	( - )	( + )
Sign of (x + 2)(x – 4)	( + )	( - )	( + )

Interval
Test Number	- 4	- 2.5	0	3
Sign of (x + 3)	( - )	( + )	( + )	( + )
Sign of (x + 2)	( - )	( - )	( + )	( + )
Sign of (x – 2)	( - )	( - )	( - )	( + )
Sign of (x + 3)(x + 2)(x –4)	( - )	( + )	( - )	( + )

Interval
Test Number	- 3	0	4
Sign of (x + 2)	( - )	( + )	( + )
Sign of (x – 3)	( - )	( - )	( + )
Sign of (x + 2)/(x – 3 )	( + )	( - )	( + )

Interval
Test Number	- 3	- 1.5	0	4	6
Sign of (x – 3)	( - )	( - )	( - )	( + )	( + )
Sign of (x + 1)	( - )	( - )	( + )	( + )	( + )
Sign of (x – 5)	( - )	( - )	( - )	( - )	( + )
Sign of (x + 2)	( - )	( + )	( + )	( + )	( + )
(x – 3)(x + 1)/(x – 5)(x + 2)	( + )	( - )	( + )	( - )	( + )

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