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Math Help - Coordinate Planes

  1. #1
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    Coordinate Planes

    Lines a and b lie in the same plane. The equation for line a is y = 5x + 3. Line b is parallel to line a. On the coordinate plane, line b passes through -3 on the y-axis. Explain in detail using words and numbers how you can use the equation for line a to write the equation for line b.

    What is the equation for line b?
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  2. #2
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    \displaystyle m_{perpendicular}=\frac{-1}{m}

    Does line a pass through -3 as well?
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  3. #3
    MHF Contributor

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    dwsmith, the question says that line b is parallel to line a, not perpendicular.
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