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3 votes
The parabola whose equation is y^2 = 12x has directrix

x = 3
x = -3
y = 3
y = -3

User Bryanne
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2 Answers

6 votes

You can use the vertex form, y = a(x - h)^2 +k, to find the directrix.

The directrix is a fixed line associated with a parabola.

In this case, the directrix is x = -3

:)))

User Thinkski
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5.7k points
5 votes

Answer:X=-3 is your answer plz like it and I will continue to do my best at answering these and helping others out so they can pass.




User Stefan Salatic
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