Posted by **Carol** on Sunday, December 7, 2008 at 9:40pm.

Are these lines parallel, intersecting, or perpendicular?

y=.15x+.79

.11x-y=-0.85

- Algebra -
**bobpursley**, Sunday, December 7, 2008 at 9:56pm
Put them in y=mx + b format.

if m is the same, they are parallel.

if m1*m2 =-1, they are perpendicular

otherwise, they intersect.

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