Length of Intercept Made by a Circle on a Straight Line
Find the equa...
Question
Find the equation of the straight line segment whose end points are the point of intersection of the straight line 2x−3y+4=0, x−2y+3=0 and the midpoint of the line joining the points (3,−2) and (−5,8).
A
x+2y−5=0
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B
x+2y+5=0
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C
x−2y−5=0
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D
None of these
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Solution
The correct option is Ax+2y−5=0
The given lines are
2x−3y+4=0....(1)
And
x−2y+3=0........(2)
(1)−(2)×2
2x−3y+4=0
2x−4y+6=0
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯0+y−2=0
y=2 substitute in (1)
x−2(2)+3=0
x−1=0
x=1
The point of intersection is
(1,2)
Mid point of line joining the points (3,−2) and (−5,8)