SOLUTION: Help please: Determine algebraically whether the lines are parallel, perpendicular or neither. State the number of solution. x - y = 5 x = 5 - y

Algebra ->  Expressions-with-variables -> SOLUTION: Help please: Determine algebraically whether the lines are parallel, perpendicular or neither. State the number of solution. x - y = 5 x = 5 - y      Log On


   



Question 43797: Help please: Determine algebraically whether the lines are parallel, perpendicular or neither. State the number of solution.
x - y = 5
x = 5 - y

Answer by Nate(3500) About Me  (Show Source):
You can put this solution on YOUR website!
x - y = 5
-y = -x + 5
y = x - 5
and
x = 5 - y
x - 5 = -y
-x + 5 = y
The slopes are perpendicular, so the lines are perpendicular. There is only one solution.
+graph%28+600%2C+600%2C+-10%2C+10%2C+-10%2C+10%2C+x+-+5%2C+-x+%2B+5+%29+