DiabloNemesiss
DiabloNemesiss
11-11-2017
Mathematics
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tynollette
tynollette
11-11-2017
slope: (3240-3555)/(8-1)=-45
y=-45x+b
use (1,3555) to find out b
3555=-45*1+b
b=3600
so y=-45x+3600
Next, find out y when x is 20
y=-45*20+3600=2700
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