SOLUTION: find the value of k that will make the lines 2x + y = 3 and kx + y = -1 parallel

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Question 89067: find the value of k that will make the lines 2x + y = 3 and kx + y = -1 parallel
Answer by tutor_paul(424) About Me  (Show Source):
You can put this solution on YOUR website!
The key thing to know is parallel lines have the same slope.
So write each equation in y=mx+b form. Once you do that, m is the slope and you can equate them fr the 2 equations:
2x%2By=3
Equation #1: y=-2x%2B3
kx%2By=-1
Equation #2: y=-kx-1
So now, you can just equate the 2 slopes and solve for k:
-k=-2
highlight%28k=2%29
Good Luck,
tutor_paul@yahoo.com