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geometry

Write the equation of the line perpendicular to 2x+8y=16 passing through (4,-2) in slope intercept form.

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  1. y+2 = 4(x-4)
    now rearrange to the right form

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    oobleck
  2. m1 = -A/B = -2/8 = -1/4
    m2 = -(-4) = 4
    Y = m2x+b
    -2 = 4*4+b
    b = -18
    Y = 4x-18.

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