Posted by **Keisha** on Wednesday, March 4, 2009 at 12:54am.

3x - 2y = 6 , 2x + 3= 6 are perpendicular lines but i need 3 ordered pairs for each. I used the m= y2-y1/x2-x1 method to establish that the slopes = -1. Any suggestions for ordered pairs for each line is much appreciated.

- Algebra -
**drwls**, Wednesday, March 4, 2009 at 2:55pm
You must have written the second equation incorrectly. It needs a "y" term. It the productsa of the slopes, not the slopes themselves that must be -1.

Picking an ordered pair is just a matter of picking x and computing y, for any x that you want. Two ordered pairs define a straight line.

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