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Byju's Answer
Standard XII
Mathematics
Normal
If -2, 6 is...
Question
If
(
−
2
,
6
)
is the image of the point
(
4
,
2
)
with respect to the line
L
=
0
, then
L
=
A
6
x
−
4
y
−
7
=
0
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B
2
x
+
3
y
−
5
=
0
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C
3
x
−
2
y
+
5
=
0
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D
3
x
−
2
y
+
10
=
0
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Solution
The correct option is
B
3
x
−
2
y
+
5
=
0
Let points are
A
(
−
2
,
6
)
&
B
(
4
,
2
)
∴
L
=
0
is
⊥
to
A
B
& passes through the mid point slope
A
B
=
−
4
6
=
−
2
3
∴
slope of
L
=
0
=
3
/
2
passes through
(
1
,
4
)
∴
required equation is
(
y
−
4
)
=
3
2
(
x
−
1
)
⇒
2
y
−
8
=
3
x
−
3
⇒
3
x
−
2
y
+
5
=
0
[C]
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0
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