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trig

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which of the following sets gives the x coordinates where the parabola y=x^2+4X-50 and the line y=7x-10 intersect when drawn in the coordinate plane

  • trig - ,

    7x-10 = x^2 + 4 x - 50

    x^2 -3x -40 = 0
    (x-8)(x+5) = 0
    x = 8 or x = -5
    (-5,-45)
    (8,46)

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