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function

a mathematical relation such that each element of one set is associated with at least one element of another set

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relation

A set of ordered pairs

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dependent variable

a variable in a logical or mathematical expression whose value depends in the independent variable

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independent variable

a variable whose values are independent of changes in the values of other variables

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y-axis

the up-and-down axis of a graph

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x-axis

the left-and-right axis of a graph

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slope-intercept form

y=mx+b

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slope

the steepness of a line on a graph, equal to its vertical change divided by its horizontal change

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y-intercept

the spot where a graph intersects the y-axis; the point where x=0

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x-intercept

The spot where a graph intersects the x-axis; the point where y=0

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