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juanaandrea Group Title

-y - 2 = x + 1 is a decreasing function

  • one year ago
  • one year ago

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  1. raffle_snaffle Group Title
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    make it a function of y respect to x

    • one year ago
  2. abb0t Group Title
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    Yes. If you put it in the form: \(\sf \color{red}{y=mx+b}\) You will see

    • one year ago
  3. juanaandrea Group Title
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    ok so it is increasing y=-2x+1

    • one year ago
  4. raffle_snaffle Group Title
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    what makes you say it's increasing?

    • one year ago
  5. juanaandrea Group Title
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    sorry decreasing

    • one year ago
  6. abb0t Group Title
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    Yes.

    • one year ago
  7. raffle_snaffle Group Title
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    okay right!

    • one year ago
  8. satellite73 Group Title
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    god help us it is not your fault, but \[-y - 2 = x + 1\] is not a function at all it is an equation

    • one year ago
  9. abb0t Group Title
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    It's a linear function, no?

    • one year ago
  10. juanaandrea Group Title
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    I have it in my homework it says if it is increasing or decreasing

    • one year ago
  11. juanaandrea Group Title
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    yes

    • one year ago
  12. satellite73 Group Title
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    no it is not a linear "function" it is an equation for a line thus beginning the long confusion between the concept of "function" and "equation" it is not your fault just bad math teachers

    • one year ago
  13. juanaandrea Group Title
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    aaaa

    • one year ago
  14. satellite73 Group Title
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    anyway what they want you to do is solve for \(y\) \[-y - 2 = x + 1\] \[-y=x+3\] \[y=-x-3\]

    • one year ago
  15. juanaandrea Group Title
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    but is it increasing or decreasing

    • one year ago
  16. satellite73 Group Title
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    and then say "since the slope is negative, it is decreasing

    • one year ago
  17. satellite73 Group Title
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    \[y=-x-3\\y=mx+b\] \[m=-1\] so it is decreasing

    • one year ago
  18. juanaandrea Group Title
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    ok thank you. was not sure

    • one year ago
  19. satellite73 Group Title
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    yw sorry you have such a crappy book

    • one year ago
  20. juanaandrea Group Title
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    y = -5x + 4 so this one is increasing right

    • one year ago
  21. juanaandrea Group Title
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    i meant decreasing sorry didnt see the -

    • one year ago
  22. satellite73 Group Title
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    yeah, decreasing

    • one year ago
  23. juanaandrea Group Title
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    k thanks

    • one year ago
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