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Solve 3x-18=2y and 5x-6y=6 by elimination show work

Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = -6. which function could heather be writing? fx) = x2 + 36x + 12 = x2 - 36x - 12 f(x) = -x + 12x + 36 f(x) = -x? - 12x - 36

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x