SOLUTION: The equations of four lines are given. Identify which lines are parallel. LINES: http://my.thinkwell.com/questionbank/92001-93000/92170/img/243345.gif

Algebra ->  Points-lines-and-rays -> SOLUTION: The equations of four lines are given. Identify which lines are parallel. LINES: http://my.thinkwell.com/questionbank/92001-93000/92170/img/243345.gif      Log On


   

Question 917809: The equations of four lines are given. Identify which lines are parallel.
LINES:
http://my.thinkwell.com/questionbank/92001-93000/92170/img/243345.gif
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Parallel lines have identical slopes.
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Line 1 : m=-5
Line 2 : %281%2F2%29y=-x-4
y=-2x-8
m=-2
Line 3 : m=-2
Line 4 : m=-1%2F5
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.
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Line 2 and line 3 are parallel.
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graph%28300%2C300%2C-10%2C10%2C-10%2C10%2C-5x-5%2C-2x-8%2C-2x%2B4%2C-%28x-9%29%2F5-8%29
Line 1 : Red
Line 2 : Green
Line 3 : Blue
Line 4 : Purple