Answer:
y = ½x + (-2)
Step-by-step explanation:
step 1. find the slope (m) of the 1st line
the slope is the coefficient of x
m1 = -2
step 2. if both line were perpendicular, so
m1 x m2 = -1
-2 x m2 = -1
m2 = ½
step 3. Arrange 2nd line equation with "(y-y2) = m2(x - x2)
(x2, y2) = (8,2)
y - 2 = ½ (x - 8)
y - 2 = ½x - 4 + 2
y = ½x - 2