Algebra Vocabulary Vocabulary book. Variable Coefficient Term Constant Numerical Expression...
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Transcript of Algebra Vocabulary Vocabulary book. Variable Coefficient Term Constant Numerical Expression...
Algebra Vocabulary
Vocabulary book
VariableCoefficient
TermConstant
Numerical ExpressionAlgebraic Expression
EquationInequality
BaseExponent
Variable
Definition: A letter that can be
replaced by a number.
Example:4x (x is the variable)
*root word ‘vary’ means different
Coefficient
Definition: A number multiplied by a
variable or variables.
Example:4x (4 is the coefficient)
*prefix ‘co’ means together
(think of co-worker)
Term
Definition: Numbers or variables
separated by + or – signs.
Example:5x + x – 2
terms
2
Constant
Definition: A term that does not have
a variable.
Example:5x + 2y + 4
constant
*constant means remains the same (no variable
gets multiplied)
Numerical Expression
Definition: Two or more terms using
only constants.
Example:2 + 3 – 5
*root word ‘number’ (only numbers)
3
Algebraic Expression
Definition: Two or more terms that
include one or more variables.
Example:2x + 5 – 7
*root word ‘algebra’ (has at least 1 variable)
2
Equation
Definition: Two algebraic expressions
connected by an equal sign.
Example: 4x = 8
*root word ‘equal’ hence equal sign
Inequality
Definition: Two algebraic expressions
connected with one of these signs: ≠, ≤, ≥, ˂, ˃.
Example: 7x ˂ 30 or x ≠ 6
*prefix ‘in’ means not, hence not equal
Base
Definition: The number used as a
factor.
Example:6
base
3
Exponent
Definition: The number of times the
base is multiplied by itself.
Example:6
exponent
3