Answer:
The lines are perpendicular
Step-by-step explanation:
we have

isolate the variable y
----> equation A
The slope of the line A is 
-----> equation B
The slope of the line B is 
Remember that
If two lines are perpendicular, then their slopes are opposite reciprocal (the product of their slopes is equal to -1)
In this problem
The slopes of line A and line B are opposite reciprocal
therefore
The lines are perpendicular
Answer:
c
Step-by-step explanation:
Answer:
2nd one is right but first one is not mark 1st one right
Answer:d
Step-by-step explanation:
Answer: 30
Step-by-step explanation: