22 terms

Constants

Quantities whose values does not change

Variable quantities

Quantities whose values change or vary

Variable

A symbol, usually a letter, to represent one or more number

Numerical Expressions

Mathematical phrase that contains numbers and operation symbols

Algebraic expressions

Mathematical phrase that contains one or more variable

Opposite

a=-a

Additive inverse

a=-a

Reciprocal

Any non zero number is a=1/a

Multiplicative Inverse

Any non zero number is a=1/a

Evaluate

Substitute a number for each variable in an equation

Term

An expression that is a number, a variable, or the product of a number and one or more variables

Coefficient

Numbered all factor of a term

Constant term

Term with no variables

Like Term

Have the same variables raised to the same powers

Equation

Statement that two expressions are equal

Solution of an Equation

Solving and equation that contains a variable means finding all values of a variable that make the equation true

Inverse Operations

Operations that undo eachother

Identity

An equation that is true for every value of the variable

Literal Equation

An equation that uses at least two different letters as variables

Compound Inequality

Joining two inequality with the word and or the word or

Absolute value

Distance from zero on number line

Extraneous solution

A solution derived from an original equation that is not a solution of the original equation