SOLUTION: The line passing through(1,-4) and perpendicular to line y=2x

Algebra ->  Linear-equations -> SOLUTION: The line passing through(1,-4) and perpendicular to line y=2x      Log On


   



Question 984215: The line passing through(1,-4) and perpendicular to line y=2x
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
.
y=2x m=2, b=0
.
Perpendicular line:
Slope is negative reciprocal=-1/2
.
y=(-1/2)x+b Put in values from point to solve for b.
-4=(-1/2)(1)+b
-8/2=(-1/2)+b
-7/2=b
.
Write equation:
y=(-1/2)x-7/2