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If the focus of a parabola is (2, 3) and...

If the focus of a parabola is (2, 3) and its latus rectum is 8, then find the locus of the vertex of the parabola.

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Latus rectum =4a=8.
`:." "a=2`.
Now, the vertex lies at distance a units from the focus.
Let the vertex be (x,y).
`:." "(x-2)^(2)+(y-3)^(2)=4`
which is the equation of locus of the vertex.
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CENGAGE-PARABOLA-Question Bank
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