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Coordinate Axes in Three Dimensional Space

The parabolax...

Question

The parabolax²= - 4ay

A

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B

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C

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D

Opens downwards

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Solution

The correct option is D
Opens downwards

A parabola with this type of equation has its focus at (0,-a) and vertex at (0,0,). This fact leads us to the answer.

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Similar questions

Q. Draw the curves :

(1) y^{2} = - 4 a x, (2) x^{2} = 4 a y,

x^{2} = - 4 a y .

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y^{2} = 4 a x

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Q. The area bounded by

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Q. The equation of common tangent to

y^{2} = 4 a x

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