Which of the following is NOT a quadratic function? Select one:
A. (x+5)(2x+5)
B. x^2−2x−19
C. x3−2x^2−6x/x
D. x(x^2+4x)

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.