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).

SmartMathMan Apr 29, 2019

#1**+2 **

No....

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

CPhill Apr 29, 2019