Question 70090
y=39-6x
x+3y=15 
What are the coordinates on a graph for these equations?
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Looking at y=39-6x
If x=0, y=39 giving you point (0,39)
If x=1, y=33 giving you point (1,33)
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Looking at x+3y=15
y=(-1/3)x+5
If x=0, y=5 giving you point (0,5)
If x=3, y=4 giving you point (3,4)
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This is what the graphs look like:
{{{graph(400,300,-10,10,-10,10,-6x+39,(-1/3)x+5)}}}
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Cheers,
Stan H.