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Safari321 Group Title

Does anyone know the equation that represents the line that passes through (-3,2) and is perpendicular to the graph of x-2y=7?

  • one year ago
  • one year ago

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  1. BluFoot Group Title
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    First solve for y in the equation of the line. Perpendicular means the slope of your new line will be the negative reciprocal of the slope of the first line. You'll get an equation that looks like y=mx+b. You know m (negative reciprocal), you have a point x,y (-3,2), plug them in and solve for b!

    • one year ago
  2. Bronco101 Group Title
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    |dw:1354397904631:dw| the slope of the other line is -2

    • one year ago
  3. Safari321 Group Title
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    will that equal the equation

    • one year ago
  4. Bronco101 Group Title
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    so if the slope is -2 and you find slope by rise over run, the point is (-3,2) so you go down 2 and to the right 1 so the y intercept is-2

    • one year ago
  5. Bronco101 Group Title
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    no the equation is y=-2x-2

    • one year ago
  6. Safari321 Group Title
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    thanks bronco

    • one year ago
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