2 years ago

Part a) Write the equation of the circle by completing the square.

Mathematics

1 answer:

Veronika [31]2 years ago

4 0

X² +4x+y²-2y=20
x²+2*2x+4 +y²-2y+1 =20+4+1
(x+2)²+(y-1)²= 25
(x+2)²+(y-1)²= 5²
center (-2,1)

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