(a) Write an equation of the line passing through the point (2, -3) and parallel to the line 3y + 6x – 1 = 0.
(b) Write an equation of the line passing through the point (-3, 0) and orthogonal to the line that contains the points (-4, 1) and (2, -2).
(c) Find the coorinates of the center and the radius of the circle x2 + y2 – 6y = -6.
(d) Find the domain and the range of f(x) = (√x2–16) – 5.