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Analytic Geometry

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Find the equation of the circle touching the lines x+2y=4, x+2y=2 and y=2x-5

Please I need help, its for my homework

  • Analytic Geometry -

    Did you notice that your first two lines are parallel ?
    so if our circle touches both of those, it must have its centre on x+2y = 3.

    now you have the question:
    a circle has its centre on x + 2y = 3 and is tangent to y=2x-5 or 2x - y - 5 = 0

    and it is the same question as the one I answered for you on Tuesday
    http://www.jiskha.com/display.cgi?id=1359516857

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