Math Vocabulary Ch. 1 and 2

Terms

undefined, object
copy deck
range
the set of all the y-coordinates from each ordered pairs
evaluate
Find the numerical value of an expression
equation
A mathematical sentence that contains
scatter plot
a graph that shows the relationship between two sets of data.
inequality
A mathematical sentence that contains less than, greater than, not equal, less than or equal to, greater than or equal to signs.
mean
the sum of data divided by the number of items in the data set, also called the average.
relation
A set of ordered pairs
variable
A placehold for a value
average
the sum of data divided by the number of items in the data set, also called the mean
conjecture
an educated guess
opposites
two numbers with the same absolute value but with different signs.
interger
the whole number and their opposites
simplify
to write an expression in a simpliar form.
numerical expression
A combination of numbers and operations such as addition, subtraction, multiplication, and division
inductive reasoning
conjecture based on a pattern of examples or past events
domain
the domain of a relation is the set of all the x-coordinates from each pair
order of operations
rules to follow when more than one operation is used in an expression
coordinate system
is formed by the intersection of two number lines that meet at right angles at their zero points
An interger and its opposite
coordinate
A number that corresponds with a point on a number line.
negative number
a number less than zero
ordered pair
A pair of numbers used to locate any pont on a coordinate plane
solution
A value for the variable that makes an equation true
absolute value
the distance a number is from zero on the number line
properties
A statement that is true for any number.
open sentence
An equation that contains a variable
algbraic expression
An expression that contains sums and or products of variables and numbers
deductive reasoning
the process of using facts, properties, or rues to jutify reasoning or reach valid condusions