Question 158248
(100,83) & (500,95)
RATE LINE=(95-83)/(500-100)
RL=12/400
RL=.03
Y=mX+b
83=.03*100+b
83=3+b
b=83-3
b=80
Y=.03X+b
SETTING Y=250 WE SOLVE FOR X.
Y=.03*250+80
Y=7.5+80
Y=7.5+80
Y=$87.5 FOR 250 MINUTES.