Answers: (a→b), (b→a), (c→c)
Step-by-step explanation:
Column A:
a)

m = -3 ⇒ m⊥ =

b) 6x - 2y = 4
-2y = -6x + 4
y = 3x - 2
m = 3 ⇒ m⊥ =

c) y - 3 =
(x - 3)
m =
⇒ m⊥ = -3
Column B
a) y - 3 =
(x - 3)
m =

b) y =

m =

c) 3x + y = 3
y = -3x + 3
m = -3
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Column A letter a matches to Column B letter b
Column A letter b matches to Column B letter a
Column A letter c matches to Column B letter c