수식 5: "y" equals StartFraction, 100 times 65 Over left parenthesis, 52.2 plus 41.9 times "e" Superscript, negative 0.0 5 5 "x" , Baseline , right parenthesis , EndFractiony=100·6552.2+41.9·e−0.055x
5
수식 6: "y" equals 65 times left parenthesis, 1 plus StartFraction, "x" Over 40 , EndFraction , right parenthesisy=65·1+x40
6
수식 7: "y" equals 100 times StartFraction, 65 Over left parenthesis, 48.8 plus 53.8 times "e" Superscript, negative 0.0 7 5 "x" , Baseline , right parenthesis , EndFractiony=100·6548.8+53.8·e−0.075x