Question

Find the equation of the circle centre (-1/2,-9) and radius 5.​

Answer 1

Answer:

0

Step-by-step explanation:

Since the centre of the circle is (−1,−2) and its radius 5

∴ the equation of the circle is (x−(−1)2+(y−(−2)2=52

⇒(x+1)2+(y+2)2=25

⇒x2+2x+1+y2+4y+4−25=0

⇒x2+y2+2x+4y−20=0.

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