Question

Consider the line y=-4x+2.

Find the equation of the line that is perpendicular to this line and passes through the point (6,-6) .

Find the equation of the line that is parallel to this line and passes through the point (6,-6) .

Answer 1

-6=1/4(6)+b
-6=3/2+b
-15/2=b
y=1/4x-15/2 (perpendicular)

Answer 2

-6=-4(6)+b
-6=-24+b
18=b
y=-4x+18 (parallel)

Answer 3

thats correct

Answer 4

woot thanks @hartnn

Answer 5

both correct, good!
welcome ^_^