22 terms

Algebra 2 A Vocab

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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