What are the focus and directrix of the parabola with the given equation?
x = -1/8y^2
focus (0, 2): directrix: x = -2
focus (0, 2): directrix: x = 0
focus (2, 0): directrix: x = 2
focus (-2, 0): directrix: x = 2
The correct answer is:
Focus (0, 2), directrix x = -2