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Math Help - Delta question

  1. #1
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    Delta question

    Show that: Delta Y = -5 x Delta X
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    No one in Particular VonNemo19's Avatar
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    Quote Originally Posted by NowayJosecalderon View Post
    Show that: Delta Y = -5 x Delta X
    Do you have the original function. We're gonna need that. And, show your work. It'll help us out, too.
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    Quote Originally Posted by VonNemo19 View Post
    Do you have the original function. We're gonna need that. And, show your work. It'll help us out, too.
    thats all ive got...btw its 5 times delta x not 5xdelta x ....
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    Quote Originally Posted by VonNemo19 View Post
    Do you have the original function. We're gonna need that. And, show your work. It'll help us out, too.
    oh and my teacher always assign bonus questions for the class after... and usually its about stuff we havent learned yet...could this be solved by limits or derivatives (since we havent learned them yet but we will this month)
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    No one in Particular VonNemo19's Avatar
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    Quote Originally Posted by NowayJosecalderon View Post
    thats all ive got...btw its 5 times delta x not 5xdelta x ....
    Well, here's the thing...we don't show that \Delta{y}=-5\Delta{x} because it just is. This is a trivial case.

    I can try something, though...

    In an amazing feat, I VonNemo19 will attempt to show that \Delta{y}=-5\Delta{x}

    Are you ready?

    Spoiler:
    \Delta{y}=-5\Delta{x} TA DA! I did it.


    Seriously, though. We need some more info here.
    Last edited by VonNemo19; January 31st 2010 at 09:06 PM.
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    Quote Originally Posted by VonNemo19 View Post
    Well, here's the thing...we don't show that y=-5\Delta{x} because it just is. This is a trivial case.

    I can try something, though...

    In an amazing feat, I VonNemo19 will attempt to show that y=-5\Delta{x}

    Are you ready?

    Spoiler:
    y=-5\Delta{x} TA DA! I did it.


    Seriously, though. We need some more info here.
    oh wait maybe i should prove by commutativity or associativity instead of solving for x or y
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    or distributivity
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    No one in Particular VonNemo19's Avatar
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    Quote Originally Posted by NowayJosecalderon View Post
    oh wait maybe i should prove by commutativity or associativity instead of solving for x or y
    Prove what? To prove something, we need some GIVEN information and that the result follows strictly from the given information. all you have is the result.

    EG: Given y=x^2, show that y'=2x


    See? Check your notes or something. Look for this mystery info that I speak of.
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  9. #9
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    prove that delta y = delta x times 5
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  10. #10
    No one in Particular VonNemo19's Avatar
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    Quote Originally Posted by NowayJosecalderon View Post
    prove that delta y = delta x times 5
    Do you know what \Delta{x} and \Delta{y} represent?
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    Quote Originally Posted by VonNemo19 View Post
    Do you know what \Delta{x} and \Delta{y} represent?


    lol dude it wouldve been way easier that way but unfortunately my teacher didnt leave any more information...
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  12. #12
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    Quote Originally Posted by NowayJosecalderon View Post
    lol dude it wouldve been way easier that way but unfortunately my teacher didnt leave any more information...

    i contacted a couple of friends and they wrote the same question as me...i didnt write the question wrongfully
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  13. #13
    No one in Particular VonNemo19's Avatar
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    Quote Originally Posted by NowayJosecalderon View Post
    lol dude it wouldve been way easier that way but unfortunately my teacher didnt leave any more information...
    Slope - Wikipedia, the free encyclopedia

    Read that. Oh, and don't forget to keep digging for that missing information.
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    Quote Originally Posted by VonNemo19 View Post
    Slope - Wikipedia, the free encyclopedia

    Read that. Oh, and don't forget to keep digging for that missing information.
    Yes my friend, we are doing secant lines and slopes and all that stuff.Im in calculus and I hate slopes and secant lines because i dont get anything. But this question seems more like an algebra question, dont you think?
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  15. #15
    No one in Particular VonNemo19's Avatar
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    Quote Originally Posted by NowayJosecalderon View Post
    Yes my friend, we are doing secant lines and slopes and all that stuff.Im in calculus and I hate slopes and secant lines because i dont get anything. But this question seems more like an algebra question, dont you think?
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