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Posers and Puzzles

Posers and Puzzles

  1. 15 Aug '07 00:10
    So, Im taking caculus this year and its day two and I already can't remember formulas of the past.

    Write a general linear equation for the line through the two points. [In this book a general linear equation is ax + by = c rather than ax + by + c = 0]

    points : (-2, 1), (2, -2)

    therefore : m = -3/4 so y = -3/4x but how to find c? [y intercept]

    Thanks for the help!
  2. Standard member ark13
    Enola Straight
    15 Aug '07 00:37
    Originally posted by Drew L
    So, Im taking caculus this year and its day two and I already can't remember formulas of the past.

    Write a general linear equation for the line through the two points. [In this book a general linear equation is ax + by = c rather than ax + by + c = 0]

    points : (-2, 1), (2, -2)

    therefore : m = -3/4 so y = -3/4x but how to find c? [y intercept]

    Thanks for the help!
    Use the equation y = -3/4x + c Plug in one of the two coordinate pairs for x and y. If you use (-2, 1) then 1 = (-3/4)*-2 + c Then solve for c.
  3. 15 Aug '07 00:41
    thanks for the help!
  4. 15 Aug '07 03:47
    We get enough of these that we should start an "I need help with my homework" forum group.
  5. Subscriber coquette
    Already mated
    15 Aug '07 04:16 / 1 edit
    great idea
  6. Standard member ark13
    Enola Straight
    15 Aug '07 15:51
    Originally posted by Gastel
    We get enough of these that we should start an "I need help with my homework" forum group.
    I don't think that's a bad idea. I need help occasionally and I love helping others when I can. However, I don't really think that there would be enough posts in it to warrant reading.