Asked by jane

how do you know that

(x-2x)/(x+1) is a hyperbola?

Thank you!
Answered by MathMate
(x-2x)/(x+1)
=-x/(x+1)
= -1 + 1/(x+1)
substitute x'=x+1
= -1 + 1/x'

Hence a hyperbola shifted one unit downwards
Answered by Mgraph
... and one unit to the left
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