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Question

The axis of the parabola 9y216x12y57=0 is?

A
3y=2
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B
x+3y=3
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C
2x=3
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D
y=3
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Solution

The correct option is A 3y=2
Since, 9y216x12y57=0
(y23)2=169(x+6116)
Put y23=y and x+6116=x
y2=4(49)x
Axis of this parabola is y=0
y23=0y=23
3y=2.

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