## Algebra Quarter Test

##### Created by:

42436514  on September 30, 2010

James Mcghee

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# Algebra Quarter Test

 VariableA symbol used to represent one or more numbers.
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#### Definitions

Variable A symbol used to represent one or more numbers.
Domain A set of numbers which can replace a variable in an equation. Ex. {1,2,3,4,5}
Open Sentence A sentence containing one or more variables.
Add other words- total,more than, plus, increased by, combined, sum, and with.
Subtract other words- difference, take away, less than, less, minus, decreased by,.
Mutliply other words- volume, twice more, product, times, of, by, area.
Divide other words- half, quotient, grouped, fraction, per.
opposite A number on the opposite side of zero whose difference from zero is the same as the given number.
Grouping Symbols Symbols that indicate the steps that are performed fist in an equation.
Number Line a real number set on a line from least to greatest.
Closure property a+b= a real unique number
commutative property a+b=b+a
multiplicative prop of -1 a x -1= -a
distributive property a(b+c)= ab=ac
Identity prop of addition a+0= a
Reflexive Prop a=a
Division a/b= a/1 x 1/b
zero product prop ab=0 then a=0 and b=0
transitive prop a=b and b=c then a=c
graph the number line put into a grid format

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