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Math Help - 2 Questions about slope and lines!!

  1. #1
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    2 Questions about slope and lines!!

    Hello, I have two questions that I can't figure out. If someone can help me out that would be great. Thank you!!

    1.) What is the slope and Y-intercept of the graph of the following equation.
    y=-2/3x4




    2.). What is the equation of the line parallel to the line 2x+3y=6 and crossing the y-axis at (0,-5)
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  2. #2
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    Dec 2008
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    what do you mean by y=-2/3x4?
    y= -2/(3x+4)?

    2)

    2x + 3y = 6

     y = \frac {-2x +6}{3} = -\frac{2}{3}x + 2 \rightarrow k = -\frac{2}{3}

    y = kx + n

    you've got y and x coords -> (0,-5)

     -5 = k \times 0 + n

     -5 = -\frac {2}{3} \times 0 + n

     n = -5


    now you've got all.

    y = -\frac {2}{3}x -5

    the last part is a waste of time though. if x = 0, then you should know that y coordinate of the point equals n.
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