Hello,
The slope of y-12=2x-8 is 2 thus the perpendicular will have as slope -1/2
y-3=-1/2(x-2)
or y=-x/2 + 4 is the equation searched.
Answer:
12x-18
Step-by-step explanation:
Answer: 
Step-by-step explanation:
Given
The expression is

Use identity 
Apply identity

Answer:
180 degree angles.
Step-by-step explanation:
180 degree angles are straight lines.