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Locus: centre (1,0) radius 4 ? (2 Viewers)

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SXCBEAST

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weirdguy99 said:
I got (1,0) radius 4 in the exam, but now I can't reproduce it.. lol

Someone do itttt!
Click to expand...
the squares cancel each other out, so you're left with (x+1)^2 ...... = 40. expand it, complete the square.
 
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