Algebra II question helpl?!?
Which of the following is represented by a parabola with vertex at the origin and focus (-3,0)?
A) x = 1/12y^2
B) y = - 1/12x^2
C) y = 1/12x^2
D) x = - 1/12y^2
Please help me I have no idea D;
Which of the following is represented by a parabola with vertex at the origin and focus (-3,0)?
A) x = 1/12y^2
B) y = - 1/12x^2
C) y = 1/12x^2
D) x = - 1/12y^2
Please help me I have no idea D;
Anonymous
Favorite Answer
D
The focus (-3,0) lies "inside" the parabola, so this parabola lies wholly in the 2nd and 3rd quadrants, which rules out A, the only other possibility.