SOLUTION: Find the locus of point P if P be midpoint of chord joining he vertex of the parabola {{{ y^2 = 8x}}} to another point on it?

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Question 1184206: Find the locus of point P if P be midpoint of chord joining he vertex of the parabola +y%5E2+=+8x to another point on it?
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
Let (x', y') be the midpoint of the chord joining (0,0) to (x, 2sqrt%282x%29) (or (x, -2sqrt%282x%29)), which is a point on the parabola +y%5E2+=+8x.

===> (x',y') = (x/2, sqrt%282x%29)

===> y' = sqrt%284%2A%28x%2F2%29%29+=+2sqrt%28x%2F2%29 = 2√x'
===> (y')^2 = 4x'.

Therefore, the locus of the point P is the equation y%5E2+=+4x.