Question 1:

Find the equation of a line perpendicular to the line $y=3x+6$
through (-9,9)

Question 2:

Find the equation of a line parallel to the line $y=-\frac{2}{3}x+2$
through (7,10)

Question 3:

Find the equation of a line perpendicular to the line $y=3x+3$
through (4,-8)

Question 4:

Find the equation of a line parallel to the line $y=3x+3$
through (7,3)