geometry notes sections 2-6. solve the following equation: m – 17 = 8
TRANSCRIPT
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Geometry Notes
Sections 2-6
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Solve the following equation:
m – 17 = 8
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Solve the following equation:
14126
y
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Solve the following equation:
-6x + 33 = 0
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Solve the following equation:
3(x - 2) = 42
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What you should learn
How to use algebra to write two-column proofs
How to use properties of equality in geometry proofs
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Vocabulary
Deductive argument Two-column proof Formal poof
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Properties of Equality for Real Numbers
Addition/SubtractionProperties of Equality
Multiplication/DivisionProperties of Equality
SubstitutionProperty of Equality
Distributive Property
You can add/subtract the same value from both sides of an equation
You can multiply/divide both sides of an equation by the same value
You can replace one thing with another of EQUAL value
a(b + c) = ab + ac AND
ab + ac = a(b + c)
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Properties of Equality for Real Numbers
Reflexive Property of Equality
Symmetric Propertyof Equality
Transitive Propertyof Equality
A number is equal to itself.
a = a
You can switch the left and right sides of an equation
If a = b then b = a
If a = b and b = c
then a = c
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Have you learned .. . .
How to use algebra to write two-column proofs?
How to use properties of equality in geometry proofs?
Assignment: Worksheet 2.6