Question 185956
find the equation of the line that goes through the points (-4,2) and (-3,-7). 
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Form: y = mx + b ; you need to find "m" and "b".
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m = slope = (-7-2)/(-3--4) = -9/1 = -9
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You now know m and you know y = 2 when x=-4 ;so solve for "b":
2 = -9*-4 + b 
b = 2-36
b = -34
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Equation:
y = -9x - 34
{{{graph(400,300,-10,10,-50,50,-9x-34)}}}
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Cheers,
Stan H.