Answer: Line 1, 2 and 3
y-9 = 3(x+1)
y = -x + 5
y = 4x + 3
Step-by-step explanation:
Follow the equation of a perpendicular line; y = mx + b
The first three lines conform to the equation above
Line 1 : y-9 = 3(x+1)
y-9 = 3x+3
y = 3x+3+9
y = 3x +12
This equation shows that line one conforms to the perpendicular equation
