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Mathematics 11 Online
OpenStudy (anonymous):

The Line y=x-1 has exactly one point in common with the circle x²+y²=r². What is the value of r²

OpenStudy (anonymous):

you can substitute y=x-1 in x²+y²=r²...

OpenStudy (anonymous):

so r is -1?

OpenStudy (anonymous):

Way off...

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