Author 
Topic 

dmvhunny
New Member
USA
2 Posts 
Posted  03/14/2011 : 09:08:25

Use the determinant to write an equation of the line passing through (–1, 3) and (2, 4). Then expand the determinant, expressing the line’s equation in slopeintercept form. 


royhaas
Moderator
USA
3059 Posts 
Posted  03/14/2011 : 10:30:56

This should be explained in your textbook. 


dmvhunny
New Member
USA
2 Posts 
Posted  03/14/2011 : 10:55:29

quote: Originally posted by royhaas
This should be explained in your textbook.
I looked in my textbook under the chapter we are currently on and It wasn't in there 


royhaas
Moderator
USA
3059 Posts 
Posted  03/14/2011 : 15:44:24

Usually the determinant will look like this: (x y 1) ( 1 3 1) (2 4 1)
Expand by minors, set it equal to zero and simplify. 



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