Multiple Choice Questions on Find the vertex and tangent at the vertex for the parabola 6y2 ndash 15x ndash 12y ndash 54 0 ........ for NDA Exam Preparation

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Multiple Choice Questions

Find the vertex and tangent at the vertex for the parabola 6y2 ndash 15x ndash 12y ndash 54 0 ........

Mathematics (NDA) Coordinate Geometry
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    Find the vertex and tangent at the vertex for the parabola  6y2 – 15x – 12y – 54 = 0?

    (-61/15 ,2/3),x=-1

    Incorrect Answer

     (-3  ,3) ,x=0

    Incorrect Answer

    (1 ,-4),x=-4

    Correct Answer

    (-6  ,3),x=-6

    Incorrect Answer
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    Explanation:

    6y2 – 15x – 12y – 54 = 0?

    The given equation can be rewritten as

    (y-1)2-10=15x/6

    (y-1)2 =15x/6  +10

    (y-1)2  =15/6  (x+ 4)

    Vertex =(1,-4)

    Equation of tangent at vertex

    X=-4

    By: bhavesh kumar singh
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