A1.FN.2: Use function notation to represent functions, understanding that if 𝑓 is a function and π‘₯ is an element of its domain, then 𝑓(π‘₯) represents the output of 𝑓 corresponding to the input π‘₯.

Use function notation to represent functions, understanding that if 𝑓 is a function and π‘₯ is an element of its domain, then 𝑓(π‘₯) represents the output of 𝑓 corresponding to the input π‘₯.

Example Problems
Evaluate:

for
Evaluate:

for
Evaluate:

for
Khan Academy Resources
Intro to inverse functionsEvaluate functionsEvaluate function expressionsFunction rules from equationsFunction notation word problemsEvaluate inverse functionsFinding inverses of linear functionsIntro to inverse functionsFinding inverse functions: linearWorked example: Evaluating functions from equationWorked example: matching an input to a function's output (equation)Graphing the inverse of a linear functionWhat is a function?Worked example: two inputs with the same output (graph)Worked example: evaluating expressions with function notationWorked example: matching an input to a function's output (graph)Evaluating sequences in recursive formWorked example: Evaluating functions from graphInputs & outputs of inverse functionsFunction notation word problem: beachFunction notation word problem: bank
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