Question

When the origin is shifted to (-1,2) by the translation of axes,find the transformed equations of the following.
(1).
$x ^{2} + y {}^{2} + 2x - 4y + 1 = 0$
(2).
$2x {}^{2} + y {}^{2} - 4x + 4y = 0$
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Answer 1

For transformation of axes, we should know formula..

x=X+h

y=Y+k