A1.FIF.1a
Understand that a function from one set (called the domain) to another set (called the range) assigns to each element of the domain exactly one element of the range.
Khan Academy ResourcesEvaluate function expressionsEvaluate functions from their graphFunction rules from equationsFunction inputs & outputs: graphIdentifying values in the domainFunction inputs & outputs: equationRecognize functions from tablesRecognize functions from graphsEquations vs. functionsRecognizing functions from tableRecognizing functions from graphObtaining a function from an equationWorked example: matching an input to a function's output (equation)What is the range of a function?What is a function?Worked example: two inputs with the same output (graph)Worked example: evaluating expressions with function notationDoes a vertical line represent a function?Evaluating discrete functionsWorked example: matching an input to a function's output (graph)Determining whether values are in domain of functionWorked example: domain & range of piecewise linear functionsWhat is the domain of a function?Worked example: Evaluating functions from graphWorked example: domain & range of step functionRecognizing functions from verbal descriptionRecognizing functions from verbal description word problems
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