I cannot find a function of the form
80 + a*e^(-kx)
which fits more than two of the points, since when x=0, you have
80+a=176, so a=96
and when x=1 you have
80+96e^-k = 169
e^-k = 89/96
k = ln(96/89) = 0.07571
80+96e^(-0.0757x) does not fit any of the other points.
find 2 exponential functions with asymptote of y=80 , with points (0,176) (1,169) (3,156) (5,146) (20,101) (30,90) (60,81).one should have the base of "e"
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