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Question Number 23104 by lizan 123 last updated on 26/Oct/17
show tht the curve with parametric equcations  x=t^2  ,y=t^3  −9t intersect at the point (9,0).
showthtthecurvewithparametricequcationsx=t2,y=t39tintersectatthepoint(9,0).
Answered by ajfour last updated on 26/Oct/17
y=t(t^2 −9)   ⇒  y^2 =x(x−9)^2   double root at x=9 , so  curve intersects itself at x=9 .
y=t(t29)y2=x(x9)2doublerootatx=9,socurveintersectsitselfatx=9.

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