A circle has a radius of \sqrt{45} 45 square root of, 45, end square root units and is centered at (-2.4,-4.8)(−2.4,−4.8)left
parenthesis, minus, 2, point, 4, comma, minus, 4, point, 8, right parenthesis.
What is the equation of this circle?
1 answer:
Answer:
- (x + 2.4)² + (y + 4.8)² = 45
Step-by-step explanation:
<u>Circle equation:</u>
- (x - h)² + (y - k)² = r², where (h, k) is the center, r - radius
<u>Substitute the values to get the equation:</u>
- (x - (- 2.4))² + (y - (-4.8))² = (√45)²
- (x + 2.4)² + (y + 4.8)² = 45
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