i have 4 questions on here and i don’t understand it.

Answer:
Step-by-step explanation:
y = mx + b, where "m" - slope, "b" - y-intercept
Slopes of parallel lines are the same and y-intercepts are different.
P ( [tex]x_{1}[/tex] , [tex]y_{1}[/tex] )
y - [tex]y_{1}[/tex] = m( x - [tex]x_{1}[/tex] )
~~~~~~~~~~~~
y = 6x + 1 , m = 6
( - 7, 1 )
y - 1 = 6[x - ( - 7 )]
y = 6(x + 7) + 1
y = 6x + 43