Answer:
since the equation of the line that passes through the point is parallel to the line
m1 = m2 (the two slopes are equal)
x -2y = 10
-2y = 10 -x ; -2y = - x +10
multiply both sides by -1
2y = x -10
y = 1/2x -5
since y = mx + c
m = 1/2
y - y1 = m ( x - x1)
y- 0 = 1/2( x -(-8))
y = 1/2 (x + 8)
cross multiply
2y = x +8
divide both sides by 2
y = 1/2x + 4(equation of the line)