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Question

If a straight line passing through the point P(3,4) is such that its intercepted portion between the coordinate axes is bisected at P, the its equation is :

A
4x+3y=0
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B
xy+7=0
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C
3x4y+25=0
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D
4x3y+24=0
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Solution

The correct option is D 4x3y+24=0
Let the line cuts x-axis and y-axis at A(h,0) and B(0,k) respectively.
Coordinates of mid-point of AB is P
P(3,4)(h2,k2)
h=6 and k=8

Therefore, equation of line is
x6+y8=1
4x3y+24=0

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