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section 2: equations and inequalities
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OR inequality
Opposite direction.
AND inequality
connects and goes towards each other
Less than
x<4
**Open Circle
**Parenthesis for interval notation.
greater than
x>4
**Open Circle
**Parenthesis for interval notation.
less than / equal to
**Closed circle
**Brackets for interval notation
greater than/ equal to
**Closed circle
**Brackets for interval notation
special inequality rule
When you divide or multiply by a negative number, you must ALWAYS FLIP the sign.
multiplication property of equality "MPE"
Multiplying the same quantity to both sides of the equation.
Addition Property of Equality "APE"
Adding the same quantity to both sides of the equation.
Subtraction Property of Equality "SPE"
Subtracting the same quantity to both sides of the equation.
Division Property of Equality "DPE"
Dividing the same quantity to both sides of the equation.
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