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Open sentences
A mathematical statement with one or more variables that will contain either a =, <,>

Solution
A replacement value for the variable in an open sentence

Equation
A mathematical sentence that contains an equal sign(=).

Replacement set
A set of numbers from which replacements for a variable may be chosen

Set
A collection of objects or numbers, of ten shown using braces and usually named by a capital letter

Element
Each object or number in a set

Solution set
The set of elements from the replacement set that make an open sentence true

Inequality
An open sentence that contains the symbol <, or >

Distributive property
Multiply the number outside of the parentheses to the number 1 variable inside the parentheses

Term
A number, a variable, or a product or quotient of numbers and variables

Like term
Are terms that contain the same variables, with corresponding variables having the same power

Equivalent Expressions
Expressions that denote the same number

Simplest form
An expression in simplest form when it is replaced by an equivalent expression having no like terms or parentheses

Coefficient
The numerical factor of a term

Commutative property
The order in which you add or multiply does not change tbe solution

Associative property
The parentheses do not change the solution

Counterexample
A specific case in which a statement is false

Function
A relation in which each element of the domain is paired with exactly one element of the range

Coordinate plane
The plane containing the x  and y  axes

Yaxis
The vertical number line on a coordinate plane

Xaxis
The horizontal number line on a coordinate plane

Origin
The point where the 2 axes intersect at their zero points

Ordered pair
A set of numbers or coordinates used to locate any point on a coordinate plane, written in the form (x,y)

Xcoordinate
The first number in an ordered pair

Ycoordinate
The second number in an ordered pair

Relation
A set of ordered pairs

Domain
The set of the first numbers of the ordered pairs in a relation

Range
The set of second numbers of the ordered pairs in a relation

