alleryStart learning →A point moves so that it is always equidistant from A(2, 3) and B(4, 7). Which equation gives its locus?
Ax + 2y = 13
B2x + y = 13
Cx - 2y = 13
Dx + 2y = 26
Answer & Solution
Correct answer: A. x + 2y = 13
Setting PA squared equal to PB squared gives 4x + 8y = 52, which simplifies to x + 2y = 13.
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