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3 years ago

What is the center and radius of the circle? * x² – 2x + 5+ y² = 8

Mathematics

1 answer:

wolverine [178]3 years ago

5 0

Answer: center (1;0), radius = 2

Step-by-step explanation:

x² – 2x + 5+ y² = 8

x² – 2x + 5+ y² = x² – 2x + 1 + 4 + y² = (х-1)² +4 + y²

(х-1)² +4 + y² = 8

(х-1)² + y² = 8 - 4 = 4

(х-1)² + y² = 2²

center (1;0), radius = 2

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