Answer:
Step-by-step explanation:
y=-1/13x since it is perpendicular flip it and make it negative

is the same thing as

and

Therefore, the first option is correct.
Answer:
what is your age
Step-by-step explanation:
the problem is incomplete until you pit your age
Answer:
y=-3
Step-by-step explanation:
5x+7y=-31
(-) 5x-9y+17
-----------------
16y=-48
------------
16 16
y=-3