Question 100206
(4,-3) (3,b) m= -4/5 find b
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slope = change in y / change in x
slope = [b--3]/[3-4] = [b+3]/[-1]

Since m= -4/5 and since m is the slope 
you get the following equation:
 
(b+3)/-1 = -4/5
b+3  = 4/5
b = -3 + 4/5
b = -15/5 + 4/5
b = -11/5
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Cheers,
Stan H.