8th Algebra One Ch 1 Voc Cards

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algebraic expression
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Terms in this set (21)
algebraic expression
an expression that contains at least one variable
Variable
a letter that represents a number
Power
repeated multiplication
Base of a power
The number that is used as a factor in a repeated multiplication
exponent
A mathematical notation indicating the number of times a quantity is multiplied by itself.
evaluate an algebraic expression
To replace each variable with a number, and then follow the order of operations.
order of operations
the order in which operations in an expression to be evaluated are carried out.
verbal model
describes real-world situation using words as labels and using math symbols to relate the words
rate
A ratio that compares two quantities measured in different units
unit rate
A rate in which the second quantity in the comparison is one unit
open sentencea mathematical sentence containing one or more variablesequationA mathematical sentence that contains an equals sign.inequalityA statement that compares two quantities using <, >, ≤,≥, or ≠solution of an equationa value of the variable that makes the equation truesolution of an inequalityany value that makes the inequality trueformulaA mathematical relationship or rule expressed in symbols.functiona relation in which each element of the domain is paired with exactly one element of the rangeDomainthe complete set of possible values of the independent variable (x, usually).rangeis the complete set of all possible resulting values of the dependent variable (y, usually), after we have substituted the domain.independent variablea variable (often denoted by x ) whose variation does not depend on that of another.dependent variablea variable (often denoted by y ) whose value depends on that of another.