1. Joined
    01 May '07
    Moves
    27311
    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 memberark13
    Enola Straight
    mouse mouse mouse
    Joined
    16 Jan '05
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    12804
    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. Joined
    01 May '07
    Moves
    27311
    15 Aug '07 00:41
    thanks for the help!
  4. B is for bye bye
    Joined
    09 Apr '06
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    27526
    15 Aug '07 03:47
    We get enough of these that we should start an "I need help with my homework" forum group.
  5. Subscribercoquette
    Already mated
    Omaha, Nebraska, USA
    Joined
    04 Jul '06
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    893602
    15 Aug '07 04:161 edit
    great idea
  6. Standard memberark13
    Enola Straight
    mouse mouse mouse
    Joined
    16 Jan '05
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    12804
    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.
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