alg 2 vocab chapter 1

20 terms by summersweethearts 

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evalutating expressions

plug in numbers variables and use order of operations to calculate.

expression

a variable or combination of variables, numbers, and symbols.

inequality

compares unequal expressions using one or more of these symbols: <, >, ≥, ≤, ≠

inverse

the number, that when added or multiplied to, equals zero.

constant

a symbol representing a value that does not change. ie π

variable

a letter that is used to represent one or more numbes

commutative property

changing the order of the operands does not change the end result.

order of operations

pemdas

associative property

changing the grouping will not change the end result.

real number

any number that can be shown on a number line.

reciprocal

flipping the fraction numbers

integer

counting numbers, both negative and postive and zero.

coefficient

the numerical factor in a term containing a variable.

equation

math sentence with an equal sign

absoulte value

the distance a number has from zero on a number line. always postive.

exponent

...

natural numbers

counting numbers, except zero.

rationals

terminating or repeating decimals

irrational numbers

nonterminating
nonrepeating decimals

rational numbers

terminate

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