Geometrymedium · Past Paper
What is the equation of the locus of a point which is always 5 units away from (0, 0)?
Ax + y = 5
Bx^2 + y^2 = 5
Cx^2 + y^2 = 25
Dx = 5
✓ Correct Answer: C — x^2 + y^2 = 25
The locus is a circle with radius 5 and center (0,0), defined by x^2 + y^2 = 25.
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