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pooja195

does anyone know how to do a inout and output table with a rule

  • one year ago
  • one year ago

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  1. saifoo.khan
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    Input and outputs as in functions?

    • one year ago
  2. pooja195
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    yea

    • one year ago
  3. saifoo.khan
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    Do you have any specific problem?

    • one year ago
  4. pooja195
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    yea the top starts from -2 and goes to 2 and the bottom is blank

    • one year ago
  5. saifoo.khan
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    And the function/rule is?

    • one year ago
  6. pooja195
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    y=-20x

    • one year ago
  7. saifoo.khan
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    Perfect. now insert the values in place of "x" one by one. Let's say -2, -1, 0, 1, 2.

    • one year ago
  8. pooja195
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    what do you mean??

    • one year ago
  9. saifoo.khan
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    y = -20x is the function, right? insert the values one by one. y = -20(-2) y = output Then -1 y = -20(-1) y = output And so on..

    • one year ago
  10. pooja195
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    i dont get this

    • one year ago
  11. saifoo.khan
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    Why? Which part?

    • one year ago
  12. pooja195
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    how would you insert values?

    • one year ago
  13. saifoo.khan
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    Replace "x" with a value is inserting the value.

    • one year ago
  14. pooja195
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    so how would i use that in a function table

    • one year ago
  15. saifoo.khan
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    Those will give you certain values of "y". The values of "y" are the outputs.

    • one year ago
  16. PhoenixFire
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    A function is usually written like f(x)=rule. So for you equation y=-20x, you can see this as a function by changing it to f(x)=-20x where x in an input value into the function. If you want to find the value of that function at -2, you would write f(-2)=-20(-2)=40. Now you have a point at x=-2 and y=40. So you put that in your table. Then you go and do each other value of x from your input column.

    • one year ago
  17. pooja195
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    ok? y makes more sense ok so the what would be after that

    • one year ago
  18. saifoo.khan
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    Insert the resulted value in the table. Simple as that.

    • one year ago
  19. PhoenixFire
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    |dw:1358631840798:dw|

    • one year ago
  20. PhoenixFire
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    The resulting value from your function y=-20x is an output. 'y' IS an output. 'x' IS an input. Take your input 'x' from your table and put it into your function... calculate the function to get your 'y' output.

    • one year ago
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