Question
Find the equation of the parabola determined by the given information. Vertex at the origin, focus at (0,-5)
1. Y^2=-20x
2. Y=-1/5x^2
3. Y^2=-5x
4. Y=-1/20x^2
1. Y^2=-20x
2. Y=-1/5x^2
3. Y^2=-5x
4. Y=-1/20x^2
Answers
Answered by
oobleck
wrong. The parabola
x^2 = 4py has vertex at (0,0) and focus at (0,p)
so we have p = -5, yielding
x^2 = -20y
or
y = -1/20 x^2
x^2 = 4py has vertex at (0,0) and focus at (0,p)
so we have p = -5, yielding
x^2 = -20y
or
y = -1/20 x^2
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