Question 1:

Find the equation of a line perpendicular to the line $y=\frac{3}{5}x+7$
through (10,-5)

Question 2:

Find the equation of a line parallel to the line $y=-\frac{1}{4}x-7$
through (10,-9)

Question 3:

Find the equation of a line perpendicular to the line $y=\frac{1}{5}x-3$
through (2,5)

Question 4:

Find the equation of a line perpendicular to the line $y=-\frac{1}{2}x-7$
through (-9,6)