Posted by **Anonymous** on Thursday, September 10, 2009 at 12:03am.

A linear system may have a unique solution, no solution, or infinitely many solutions. Indicate the type of the system for th following examples by U , N , or I , respectively.

1. 2x+3y=5 4x+6y=10

2. 2x+3y=5 2x+4y=6

3. 2x+3y=5 2x+3y=6

- math -
**drwls**, Thursday, September 10, 2009 at 1:37am
1. One equation is twice the other, but represents the same line. There are an infinite number of (x,y) combinations that satisfy it.

2. Those lines intercept at a point, for one solution.

3. Both equations cannot be true. Those are the equations of parallel lines

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