Mathematics · Coordinate Geometry
The equation of a circle with centre (5, 4) that touches the Y-axis is:
- 1x2 + y2 - 10x - 8y + 25 = 0
- 2x2 + y2 + 10x + 8y + 16 = 0
- 3x2 + y2 - 10x - 8y + 16 = 0✓
- 4x2 + y2 - 10x - 8y - 16 = 0
Correct answer
x2 + y2 - 10x - 8y + 16 = 0
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