evenans61 - Even-Numbered Answers to Exercise Set 6.1: 2x2...

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Even-Numbered Answers to Exercise Set 6.1: 2x2 Linear Systems −4 −2 2 4 6 −2 2 4 6 8 x y −12 −10 −8 −6 −4 −2 2 −6 −4 −2 2 4 6 x y −6 −4 −2 2 4 −6 −4 −2 2 x y −4 −2 2 4 −2 2 4 6 x y −2 2 4 6 −4 −2 2 x y −4 −2 2 4 6 8 10 −2 2 4 6 8 10 12 x y −6 −4 −2 2 4 6 −6 −4 −2 2 4 6 x y 2. Graph: The two equations represent the same line. 4. Graph: The lines intersect in one point: ) 0 , 6 ( 6. Graph: The lines are parallel. 8. Graph: Solution: ) 5 , 1 ( 10. Graph: There are infinitely many solutions, since the two equations represent the same line and intersect in an infinite number of points. The solutions are of the form: ( ) 2 5 2 1 , x x 12. Graph: Solution: ) 1 ,
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evenans61 - Even-Numbered Answers to Exercise Set 6.1: 2x2...

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