# 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
- additive inverse
- 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
- quadrant
- the four regions into which the x and y axis seperate the coordinate plane