MCGRAW HILL ALGEBRA 2 CH 1
VOCAB. TEST QUESTIONS WITH ALL
CORRECT ANSWERS GRADED A+
whole numbers - Answer-Natural numbers ( counting numbers) and zero; 0, 1, 2, 3...
natural numbers - Answer-counting numbers
open sentence - Answer-a mathematical sentence containing one or more variables
equation - Answer-a mathematical statement that two expressions are equal
solution - Answer-replacement value that results in a true sentence
absolute value - Answer-The distance a number is from zero on a number line
empty set - Answer-a set that contains no elements
set-builder notation - Answer-the expression of the solution set of an inequality
compound inequality - Answer-consists of two inequalities joined by the word and or the
word or
variable - Answer-letters used to represent unknown quantities
algebraic expression - Answer-an expression that contains at least one variable
order of operations - Answer-the order in which operations in an expression to be
evaluated are carried out. 1. parentheses 2. exponents 3. multiplication and division 4.
addition and subtraction
formula - Answer-a mathematical sentence that expresses the relationship between
certain quantities
real numbers - Answer-the set of all rational and irrational numbers
rational numbers - Answer-Any number that can be expressed as a fraction
irrational numbers - Answer-Numbers that cannot be expressed as a ratio of two
integers. Their decimal expansions do not end or repeat
integers - Answer-The set of whole numbers and their opposites
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