# Shared Flashcard Set

## Details

Pre-Algebra
Vocabulary Review
43
Mathematics
05/02/2009

Term
 algebraic expression
Definition
 An expression that contains sums and/or products of variables and numbers.
Term
 conjecture
Definition
 an educated guess
Term
 inductive reasoning
Definition
 making a conjure based on a pattern of examples or past events
Term
 numerical expression
Definition
 a expressing such as 1+2*5
Term
 evaluate
Definition
 to find an answer to an expression
Term
 order of operations
Definition
 first simplify the expressions inside group symbols, then do all * or / from left to right, and then doing all + and - from left to right
Term
 variable
Definition
 a placeholder for any value
Term
 substitution property of equality
Definition
 replacing a variable with a number
Term
 defining a variable
Definition
 choosing a variable and a quantity for the variable to represent
Term
 properties
Definition
 statements that are true for any numbers
Term
Definition
 represented by 8+3 or 3+8
Term
 commutative property of multiplacation
Definition
 3*8 or 8*3 represent this property
Term
 assosiative property
Definition
 the way in which numbers are grouped when added or multiplied does not change the sum or the product
Term
 counterexample
Definition
 an example that shows a conjecture is not true
Term
 simplify
Definition
 to write algebraic expressions in a simpler form
Term
 deductive reasoning
Definition
 the process of using facts, properties, or rules to justify reasoning or reach valid conclusions
Term
 equation
Definition
 a mathematical sentence taht contains an equals sign
Term
 open sentence
Definition
 an equation that contains a variable
Term
 solution
Definition
 a value for the variable that makes an equation true
Term
 solving the equation
Definition
 the process of finding a solution
Term
 coordinate system
Definition
 a system that is used to locate points
Term
 y-axis
Definition
 the vertical number line
Term
 x-axis
Definition
 the horizontalnumber line
Term
 origin
Definition
 the point where the x and y axis intersect (0,0)
Term
 coordinate plane
Definition
 the second name for the coordinate system
Term
 ordered pair
Definition
 used to locate any points on a coordinate plane
Term
 x-coordinate
Definition
 the first number in an ordered pair
Term
 y-coordinate
Definition
 the second number in a ordered pair
Term
 graph
Definition
 to draw a dot at the point that corresponds to the ordered pair
Term
 relation
Definition
 a set of ordered pairs
Term
 domain
Definition
 the set or x-coordinates
Term
 range
Definition
 the set of y-coordinates
Term
 scatter plot
Definition
 a graph that shows the relationship between two sets of data
Term
 negative number
Definition
 a number less than zero
Term
 integers
Definition
 whole numbers and their opposites
Term
 coordinate
Definition
 the number that corresponds to a point
Term
 inequality
Definition
 a mathematical sentence containing a less than or greater than sign
Term
 absolute value
Definition
 two numbers on opposite sides of zero, but are the same distance away
Term
 opposites
Definition
 two numbers with the same absolute value but different signs
Term
Definition
 an integer and its opposite
Term