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    Happy Pi day! Down with Pi?

    Curious on people's thoughts. Especially since most people here are a lot better at math than me!
  2. E

    Negative Direct Variation

    Homework Statement Alright, so I just want some clarification on direct variation, since it seems that every internet source I can find is (seemingly to me) wrong. To me, direct variation means that the ratio of y to x is fixed with y=kx where k is the constant of proportionality...