# Help, I'm stumped!

• September 10th 2009, 08:36 PM
rcfreak339
Help, I'm stumped!
I am stumped with this...I know what it is asking, but I need a little bump to get me started. Any Help
http://img36.imageshack.us/img36/482...09111909pm.jpg
• September 10th 2009, 09:51 PM
Wilmer
Did you graph the points ?
• September 11th 2009, 07:44 AM
HallsofIvy
The simplest way to do that is to find the slope of the two lines. If two lines, with slopes $m_1$ and $m_2$, are pependicular then $m_1m_2= -1$.