SOLUTION: Are these two lines parallel perpendicular or neither? 3x - y = -2 and x - 3y = -9... I also need to see the steps please.

Question 603736: Are these two lines parallel perpendicular or neither? 3x - y = -2 and x - 3y = -9... I also need to see the steps please.
Answer by alicealc(293) (Show Source): You can put this solution on YOUR website!
Line 1: 3x - y = -2
3x + 2 = y
the slope of this line is 3

Line 2: x - 3y = -9
x + 9 = 3y
(divide all by 3)
1/3 x + 3 = y
the slope of this line is 1/3

because the two slopes aren't same, they are not parallel
because slope 1 * slope 2 not equal with -1, they are not perpendicular

so, the two lines are neither parallel nor perpendicular

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