Glen88
Member
Two points P and Q move along the parabola y=x3/4a in such a way that the x-coordinates of P and Q differ by the constant amount 2a. Find the equation of the locus of the midpoint of the chord PQ, and describe in words this locus.
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Its called completing the square.Glen88 said:y/a=p²-p+1/2 <-- How did you go from here
y/a=(p-1/2)²+3/4 <-- To Here.