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Mathematics
Problem
Consider the two lines:
L
1
:
4
x
−
6
y
+
9
=
0
L_1: \;4x - 6y + 9 = 0
L
1
:
4
x
−
6
y
+
9
=
0
and
L
2
:
2
x
+
3
y
=
0
L_2:\;2x + 3y = 0
L
2
:
2
x
+
3
y
=
0
. Which of the following correctly describes their relationship? a) They are perpendicular. b) They coincide. c) They are neither parallel nor perpendicular. d) They are parallel.
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