Flashcards: Holt California: Algebra 1 Vocabulary

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linda840325 on August 1, 2008

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algebra1

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HS Math

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Flashcards: Holt California: Algebra 1 Vocabulary

Variable (p. 6)
A letter or symbol used to represent a value that can change.
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Variable (p. 6) A letter or symbol used to represent a value that can change.
Constant (p. 6) A value that does not change.
Numerical Expression (p. 6) Contains only constants and/or operations.
Algebraic Expression (p. 6) Contains variables, constants, and/or operations.
Evaluate (p. 7) To find the value of an expression.
Replacement Set (p. 7) A set of numbers that can be substituted for a variable.
Real Numbers (p. 14) The set of all numbers that can be represented on a number line.
Absolute Value (p. 14) The distance of a number from zero on a number line.
Opposites (p. 15) Two numbers that have the same absolute value but have different signs.
Additive Inverse (p. 15) A number and its opposite that are the same distance from zero.
Reciprocal (p. 21) The product of two numbers that are equal to 1.
Multiplicative Inverse (p. 21) A number and its reciprocal.
Power (p. 26) An expression written with an exponent and a base.
Base (p. 26) The number that is used as a factor.
Exponent (p. 26) The number that indicates how many times the base is used as a factor.
Square Root (p. 32) A number that is multiplied by itself to form a product.
Principal Square Root (p. 32) The positive square root of a number that is represented by √.
Perfect Square (p. 32) A number whose positive square root is a whole number.
Cube Root (p. 32) A number that is raised to the third power to form a product.
Natural Numbers (p. 33) All counting numbers.
Whole Numbers (p. 33) All natural numbers and zero.
Integers (p. 33) All whole numbers and their opposites.
Rational Numbers (p. 33) Numbers that can be expressed in the form a/b, where a and b are both integers and b ≠ 0.
Terminating Decimal (p. 33) Has a finite number of digits after the decimal point.
Repeating Decimal (p. 33) Has a block of one or more digits after the decimal point that repeat continuously.
Irrational Numbers (p. 34) All numbers that are not rational.
Counterexample (p. 43) An example that disproves a statement, or shows that it is false.
Closure (p. 44) A set of numbers is said to be closed under an operation if the result of the operation on any two numbers in the set is also in the set.
Order of Operations (p. 48) Tells you which operation to perform first.
Terms (p. 49) The parts of an expression that are added or subtracted.
Like Terms (p. 49) Terms with the same variables raised to the same exponents.
Coefficient (p. 49) A number multiplied by a variable.
Equation (p. 72) A mathematical statement that two expressions are equal.
Solution of an Equation (p. 72) A value of the variable that makes the equation true.
Solution Set (p. 72) The set of all solutions.
Equivalent Equations (p. 79) Have the same solutions, or the same solution set.
Identity (p. 93) An equation that is always true, no matter what value is substituted for the variable.
Ratio (p. 102) A comparison of two quantities.
Proportion (p. 102) A statement that two ratios are equal.
Rate (p. 102) A ratio of two quantities with different units.
Unit Rate (p. 102) Rate with a second quantity of 1 unit.
Cross Products (p. 103) In the proportion a/b=c/d, the products ad and bc are cross products.
Percent (p. 103) A ratio that compares a number to 100.
Scale (p. 104) A ratio between two sets of measurement.

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