SOLUTION: Are the following lines perpendicular?
Line 1: y=x+3
line 2: x-y=13
Algebra.Com
Question 115620: Are the following lines perpendicular?
Line 1: y=x+3
line 2: x-y=13
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
y=mx+b m=slope
.
x-y=13
x-x-y=-x+13
-y=-x+13
-y*-1=-x*-1+13*-1
y=x-13
.
y=x+3
.
No, they are parallel because m is the same in each equation.
Ed
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