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Algebra 2 chapter 1
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Terms in this set (23)
Absolute Value
Distance from 0 on a number line
Algebraic expressions
Expressions that contain at least one variable
Compound inequality
Two inequalities joined by the word 'and' or the word 'or'
Constraint
Condition that a solution must satisfy
Empty set
No solution
Equation
Mathematical sentence stating that two mathematical expressions are equal
Extraneous Solution
A number that is not the actual solution to a original question
Formula
Mathematical sentence that expresses the relationship between certain quantities
Infinity
Symbol used to indicate that a set is unbounded in the positive or negative direction
Integers
(-3,-2,-1,0,1,2,3...)
Intersection
Inequality containing 'and'
Interval Notation
(-infinity,2)
Irrational numbers
Decimal form of this number neither terminates nor repeat
Natural numbers
Subsets of the rational numbers (1,2,3,4,5)
Open sentence
Sentence containing one or more variables
Rational numbers
Can be expressed as a ratio a/b
Real numbers
Consists of several different kinds of numbers
Set-builder notation
{y|y<9}
Solution
A replacement for the variable in an open sentence that results in a true sentence
Union
Inequality containing 'or'
Variables
Letters used to represent unknown quantities
Whole numbers
(0,1,2,3,4....)
Order of Operations
Evaluate an expression by using the proper operations. PEMDAS
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