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If two equations graph as straight lines, can the system have exactly 2 solutions? Explain your answer, including ALL the possibilities of numbers of solutions. (tell the teacher how many solutions there can be, and what the graphs look like). 

 Apr 29, 2019



They either intersect at one point  (one solution)  or

They are parallel  (no intersections at all....so...no solutions )  or

They are the same line and intersect at an infinite number of points


This might help  :  http://nogales.laurusmath.com/cpages/contents/pdf/HS-S3-C3-PO4-notes.pdf



cool cool cool

 Apr 29, 2019

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