Which expression is equivalent to c^2-4/c+3 divided by c+2/3(c^2-9)

Which statements are true? check all that apply. the line x = 0 is perpendicular to the line y = –3. all lines that are parallel to the y-axis are vertical lines. all lines that are perpendicular to the x-axis have a slope of 0. the equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2. the equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.

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Graph the equationy=x^2 -[tex]y = x^{2} - 2[/tex]