JEE Mathematics · Hard

Circle: JEE Main MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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JEE MainHardQuestion 320009

Question

The equation of circle passing through (0,0), (3,0), and (0,4) is:
  1. A
    x² + y² − 3x − 4y = 0
    Correct
  2. B
    x²+y²=25
  3. C
    x²+y²−3x−4y+5=0
  4. D
    (x−3)²+(y−4)²=25

Correct answer

x² + y² − 3x − 4y = 0

Explanation

General circle: x²+y²+Dx+Ey+F=0. Through (0,0): F=0. Through (3,0): 9+3D=0 → D=−3. Through (0,4): 16+4E=0 → E=−4. Equation: x²+y²−3x−4y=0.