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OpenStudy (anonymous):
The line x+2y=9 intersects the curve xy +18=0 at the points A and B. Find the coordinates of A and B.
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sam (.sam.):
Simultaneous
sam (.sam.):
|dw:1332666081213:dw| you can see both equations intercept each other, this means they will have the same x and y values, so x+2y=9 x=9-2y and xy +18=0 x=-18/y Then, equate both together 9-2y=-18/y Then solve
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