Parallel and Perpendicular Lines

Question 1:

Find the equation of a line parallel to the line y = 2 3 x+1
through (3,-9)
y = 2 3 x11

Question 2:

Find the equation of a line parallel to the line y =-5x+10
through (5,9)
y = 5 x+34

Question 3:

Find the equation of a line perpendicular to the line y =2x+6
through (2,-8)
y = 1 2 x7

Question 4:

Find the equation of a line perpendicular to the line y = 4 5 x+1
through (7,2)
y = 5 4 x+ 43 4