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Functions

Functions. What’s a function and what can it look like? …. Created by Rene’ McKibbin. Function – each member of the first set of data is mapped to only one member of the second set of data – for every x there can only be one y. Tables. Function. Function. Not a Function. Tables.

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Functions

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  1. Functions What’s a function and what can it look like? … Created by Rene’ McKibbin

  2. Function– each member of the first set of data is mapped to only one member of the second set of data – for every x there can only be one y

  3. Tables Function Function Not a Function

  4. Tables Not a Function Function

  5. MAPPINGs -6 -5 -4 -3 -2 0 1 5 6 9 11 15 15 10 7 0 1 2 3 4 Function Not a Function

  6. Graphs Note: If trying to determine if a graph is a function you must do the vertical line test, the line can only pass through the graph one time (red line) Not a Function Function Function

  7. Graphs Function Not a Function

  8. Domain & range • Domain – the set of all possible values that can be assigned to the independent variable in a function – your x value • Range – the set of all possible values of the dependent variable in a function – your y value Ex: (8,9), (-7,12), (0,5), (6,3) domain – {8, -7, 0, 6} or D: {-7 < x < 8} range – {9, 12, 5, 3} or R: {3 < y < 12}

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