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dmvhunny
New Member

USA
2 Posts
Posted - 03/14/2011 :  09:08:25  Show Profile  Reply with Quote
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 slope-intercept form.
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royhaas
Moderator

USA
3039 Posts
Posted - 03/14/2011 :  10:30:56  Show Profile  Reply with Quote
This should be explained in your textbook.
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dmvhunny
New Member

USA
2 Posts
Posted - 03/14/2011 :  10:55:29  Show Profile  Reply with Quote
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
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royhaas
Moderator

USA
3039 Posts
Posted - 03/14/2011 :  15:44:24  Show Profile  Reply with Quote
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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