Question: Determine if : 2 x 2 + 2 y 2 6 x +10 y + 7 = 0 ; 4 x 2 + 4

Determine if :

2 x 2 + 2 y 2 − 6 x +10 y + 7 = 0 ;

4 x 2 + 4 y 2 + 28 x − 8 y +53 =0 ;y

16 x 2 +16 y 2 − 64 x + 8 y + 177 = 0

Represent a circle, a point or the empty set (If you represent a circle, describe its centre and its radius)

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