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Question

The equation of the parallel to the line 2x3y=1 and passing through the point of the segment joining the points (1,3) and (1,7), is

A
2x3y+8=0
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B
2x3y=8
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C
2x3y+4=0
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D
2x3y=4
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Solution

The correct option is A 2x3y+8=0
Given that,
2x3y=1--------(i)
3y12x
y=2x31
[y=mx+c]
m=23
equation of line AB
yy1xx1=y2y1x2x1
y3x1=7311
y3x1=0
y3=0
y=3
From (i)
2x3y=1
2x3×3=1
2x=10
x=5
p=(x.y)=(5,3)
equation of MN at (5,3)
yy1=m(xx1)
y3=23(x5)
3(y3)=2(x5)
3y9=2x10
3y2x=10+9
3y2x=1
2x3y1=0
Which is required equation of line.

1109375_1052471_ans_151a4067af78431db15d7adeeef84f10.png

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