SOLUTION: Find the standard form of the equation of the parabola with a focus at (0, -3) and a directrix at y = 3. (5 points)
y2 = -12x
y2 = -3x
y = negative 1 divided by 12 x2
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Question 1138078: Find the standard form of the equation of the parabola with a focus at (0, -3) and a directrix at y = 3. (5 points)
y2 = -12x
y2 = -3x
y = negative 1 divided by 12 x2
y = negative 1 divided by 3 x2
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
The standard form is , where the focus is (, ) and the directrix is .
given:
a focus at (, ) =>(, )=(, )
so, and =>....eq.1
a directrix at =>=>....eq.2
from eq.1 and eq.2 we have
.....solve for
go to ....eq.2, plug in
your equation is:
=> your answer
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