# Shared Flashcard Set

## Details

Alg 1, Chap 1
chapter 1 Vocab
45
Mathematics
08/12/2011

Term
 Variable
Definition
 A letter or symbol used to represent a value that can change.
Term
 Constant
Definition
 A value that does not change. Ex: 5
Term
 Constant
Definition
 A value that does not change. Ex: 5
Term
 Numerical Expression
Definition
 Contains only constants and operations. Ex: 3+5
Term
 Identify
Definition
 Know, or be able to name.
Term
 Subset
Definition
 part of a set or group.
Term
 Proprty
Definition
 A feature or characteristic that describes an object or, a rule or law that the object satisfies.
Term
 Demonstrate
Definition
 To show.
Term
 Assertion
Definition
 A statement which is made without proof.
Term
 Reciprocal
Definition
 Numbers with a product of 1. Ex:2 X 1 - - 1 2
Term
 Recognize
Definition
 Know or understand.
Term
 Sufficient
Definition
 Enough.
Term
 Refute
Definition
 Show a statement is NOT true.
Term
 Construct
Definition
 To make or prepare
Term
 Valid
Definition
 True and correct.
Term
 Formulate
Definition
 Make or prepare like construct.
Term
 Algebraic expression
Definition
 Contains variables, constants and/or operations such as addition.
Term
 Evaluate
Definition
 Used with expressions to find their value.
Term
 Replacement Set
Definition
 A set of numbers that can be substituted for a variable in an expression
Term
 Real Numbers
Definition
 All the numbers represented by a number line. Can include fractions, whole numbers and decimals.
Term
 Opposites
Definition
 Two numbers which are the same but are on the other side of 0. Ex: 3 and -3.
Term
Definition
 A number and its opposite are additive inverses. They are the same distance from 0 in the opposite direction. Ex: 4 and -4 are additive inveses.
Term
 Multiplicative Inverses
Definition
 A number and its reciprocal. 2 and 1/2 are multiplicative inverses.
Term
 Power
Definition
 An expression written with a base and an exponent.
Term
 Base
Definition
 A number with an exponent. Wrtten as the large number below the exponent.
Term
 Exponent
Definition
 The small number written to the upper right of the larger base number.
Term
 Square Root
Definition
 A number multiplied by itself to form a product is a square root of that product.
Term
Definition
 Used to represent square roots.
Term
 Perfect Square
Definition
 A number whose positive square root is a whole number (not a decimal). Ex: the square root of 4 is 2.
Term
 Cube Root
Definition
 A number that is raised to the third power to form a product.
Term
 Natural Numbers
Definition
 The counting numbers 1, 2, 3...
Term
 Whole Numbers
Definition
 The natural numbers plus 0, 0, 1, 2, 3...
Term
 Integers
Definition
 The whole numbers and their opposites. -3, -2, -1, 0, 1, 2, 3...
Term
 Rational numbers
Definition
 All numbers which can be written a - b where b is not =0 and if divided the resulting decimal is either a repeating or non-repeating decimal.
Term
 Irrational numbers
Definition
 Any non-perfect square is an irrational number because the decimal is neither repeating nor terminating.
Term
 Conditional Statement
Definition
 A statement in "if...then" form.
Term
 Hypothesis
Definition
 Part of a conditional statement that follows the "if" part.
Term
 Conclusion
Definition
 the part of a conditional statement that follows the "then" part.
Term
 The converse of a conditional statement
Definition
 Formed by exchanging the hypothesis and the conclusion.
Term
 Counterexample
Definition
 An example the disproves a statement or that shows the statement is false.
Term
 Order of operations
Definition
 GEMDAS, Grouping, Exponents, Multiplication, Division, Addition, Subtraction.
Term
 Terms
Definition
 Yhr parts that are added or subtracted.
Term
 Like Terms
Definition
 Contain te same variables, riased to the same powers, or are both constants.
Term
 Coefficient
Definition
 The number multiplied by the variable. It is directly in front of the variable.
Term
 Perimeter
Definition
 The area around a shape. The sides added together.
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