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Linear Functions

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Term
Definition
Function   a relationship that pairs each input with exactly one output  
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Domain   a set of all input values of a function  
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Range   the set of all output values of a function  
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Independent Variable   the variable that represents input values of a function  
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Dependent Variable   the variable that represents output values of a function  
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Relation   pairs inputs with outputs; A relation that pairs each input with exactly one output is a function  
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Vertical Line Test (VLT)   a graph represents a function when no vertical line passes through more than one point on the graph  
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Discrete Domain   a set of input values that consists of only CERTAIN numbers in an interval  
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Continuous Domain   a set of input values that consists of ALL numbers in an interval  
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Linear Function   a function whose graph is a non vertical line; can be written in y=mx+b  
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Function Notation   a way to name a function using f(x) instead of y; read as "f of x"  
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Absolute Value Function   a function that has a V-shaped graph that opens up or down; most basic one is f(x)=|x|  
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Nonlinear Function   a function that does not have a constant rate of change; not a line  
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