Practice problem
Which of these lines are a possible axis of symmetry for a parabola?
y=3y = 3y=3
x=0x = 0x=0
x=2yx = 2yx=2y
y=3x−4y = 3x - 4y=3x−4
x=12y+2x = 12y + \sqrt{2}x=12y+2
Type a concept, like “slope” or “photosynthesis”.