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1.2 Functions and Graphs

1.2 Functions and Graphs. Domain and Range. Domain – all of the x-coordinates of a graph Range – all of the y-coordinates of a graph Notation Interval notation Set Notation Proper use of brackets & parentheses. Even/Odd Functions. A function is even if f(-x) = f(x)

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1.2 Functions and Graphs

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  1. 1.2 Functions and Graphs

  2. Domain and Range • Domain – all of the x-coordinates of a graph • Range – all of the y-coordinates of a graph • Notation • Interval notation • Set Notation • Proper use of brackets & parentheses

  3. Even/Odd Functions • A function is even if f(-x) = f(x) • Ex: f(x) = x2 • Also look at graph • Symmetric about y-axis • A function is odd if f(-x) = -f(x) • Ex:f(x) = x3 • Symmetric about origin

  4. Piecewise Functions • Two functions with restricted domains that create a new graph. • Ex:

  5. Composite Functions • Doing multiple operations with multiple functions. • Ex.: If g(x) = x2 and f(x) = x – 7, then what is f(g(2))?

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