Question 143917
graph and analyze linear functions. The question is 
The solutions of line a are (3, 3), (5, 5), (15, 15), (34, 34), (678, 678), and (1234, 1234).
Equation: y = x
{{{graph(400,300,-10,10,-10,10,x)}}}
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The solutions of line b are (3, -3), (5, -5), (15, -15), (34, -34), (678, -678), and (1234, -1234). 
Equation: y = -x
{{{graph(400,300,-10,10,-10,10,-x)}}}
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Cheers,
Stan H.