M.A1HS.18

Recognize 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. If f is a function and x is an element of its domain, then f(x) denotes the output of f corresponding to the input x. The graph of f is the graph of the equation y = f(x).

Khan Academy Resources

Evaluate 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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