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Posted by on Monday, May 5, 2008 at 9:34pm.

what would be the equation of a line that has a slope of -2 and passes through point (3,5)? Please help! Math test tomorrow:(

  • math - , Monday, May 5, 2008 at 9:51pm

    Try the form y = m x + b
    where m is the slope and b is the y axis intercept.
    We are given m. It is -2
    so
    y = -2 x + b
    now we are give a point where x = 3 and y = 5
    put those values in
    5 = -2*3 + b
    5 = -6 + b
    b = 11
    so in the end
    y = -2x + 11

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