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lines a and b are perpendicular and have the same x-intercept. The equation of line a is x+2y-4=0. Determine the y-intercept of line b.

  • Math -

    line a has slope -1/2, and goes through (4,0)

    line b has slope 2 and goes through (4,0):

    2x - y - 8 = 0

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