Thread: Need help please
View Single Post
  #2  
Old January 13th, 2009, 05:20 PM
Prove It Prove It is offline
MHF Contributor
  
Join Date: Aug 2008
Posts: 2,710
Country:
Thanks: 68
Thanked 1,069 Times in 1,001 Posts
Prove It has much to be proud ofProve It has much to be proud ofProve It has much to be proud ofProve It has much to be proud ofProve It has much to be proud ofProve It has much to be proud ofProve It has much to be proud ofProve It has much to be proud ofProve It has much to be proud of
Default
Quote:
Originally Posted by kidsdomain View Post
in a 50 word response how can you determine if two lines are perpendicular?
Their gradients have a product of -1.
Reply With Quote
The following users thank Prove It for this useful post:
Donate to MHF