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Level 240

Tables, Graphs, Equations


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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.
Relationship
What we have when one variable depends on another.Cause and effect between 2 varibles.
Coordinate Graph
A picture of a relationship using one axis for each variable.
data
A collection of information gathered for a purpose. Data may be in the form of either words or numbers.
table
Shows a relationship by listing the data for the two variables in pairs.
plotting points
Taking data from a table and putting the points onto a graph.
Equation
A mathematical sentence that contains an equals sign
scale
The numbers we choose to put along the axis of a graph.
internal
The difference or jump between two numbers.
X Variable
Independent or explanatory variable
Y Variable
Dependent or response variable
x axis
The horizontal axis on a coordinate graph, for the varaible that controls the other (an axis ia a line on a graph)
Formula
An equation that relates two or more quantities
coordinate pair
A pair of numbers telling where a point lies on a graph it is always (x,y)
linear
A relationship that graphs as a straight line. This means y is changing at a constant enterval.
Proportional
A relationship where y doubles whenever x doubles. in other words, we can scale up or down.