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pooja195

  • one year ago

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

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  1. saifoo.khan
    • one year ago
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    Input and outputs as in functions?

  2. pooja195
    • one year ago
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    yea

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

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

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

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

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

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

  9. saifoo.khan
    • one year ago
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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..

  10. pooja195
    • one year ago
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    i dont get this

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

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

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

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

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

  16. PhoenixFire
    • one year ago
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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.

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

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

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

  20. PhoenixFire
    • one year ago
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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.

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