SOLUTION: y=18x-9
-108x+6y=-54
Graph and describe consistent,dependent etc.
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Question 995177: y=18x-9
-108x+6y=-54
Graph and describe consistent,dependent etc.
Answer by ikleyn(52788) (Show Source): You can put this solution on YOUR website!
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Rewrite it in the standard form
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The rows of coefficients are proportional with the proportionality coefficient -6 (or ). The right side terms are proportional with the same coefficient.
Hence, the equations are dependent. The straight lines that correspond to these equations are parallel. Moreother, they have the common point (x,y) = (0,-9)
and, therefore, coincide. Hence, the system is consistent.
See the lesson Geometric interpretation of the linear system of two equations in two unknowns in this site.
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