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Level 521

Patterns & Relations


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Variable
an alphabetic character representing a number, called the value, which is either arbitrary or not fully specified or unknown. It is usually a letter like x or y.
Table of values
a table that contains several ordered pairs that make an equation in two variables true
ordered pair
A pair of numbers that can be used to locate a point on a coordinate plane.
expression
A mathematical phrase without an equal sign.
Equation
A mathematical sentence that contains an equals sign
Discrete Data
A list-able set of values; usually counts of items
Continuous Data
Data can take on any values in the domain of the variable; usually measurements of something
x axis
The horizontal axis on a coordinate graph, for the varaible that controls the other (an axis ia a line on a graph)
y axis
has the dependent variable, the vertical line on a graph