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Mathematics
Mathematics
Problem
The point
A
(
1
,
2
)
A(1, 2)
A
(
1
,
2
)
is reflected across a straight line
L
L
L
to become the point
A
′
(
5
,
−
4
)
A'(5, -4)
A
′
(
5
,
−
4
)
. Determine the equation of the line
L
L
L
in general form
a
x
+
b
y
+
c
=
0
ax + by + c = 0
a
x
+
b
y
+
c
=
0
.
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