Question 265958
Find an equation of the line containing the give pair of points 

(-6,-6) and (7,7)
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slope = (7--6)/(7--6) = 13/13 = 1
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Form: y = mx + b
You have m = 1 and y = 7 when x = 7.
Substitute and solve for "b":
7 = 1*7 + b
b = 0
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Equation:
y = x
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Cheers,
Stan H.