L = 60 (slider from 1 to 60, step 1)
b = 10.5 (slider from 0 to 20, step 0.1)
k = 0.14 (slider from 0 to 0.2, step 0.01)
M: y = L
P(x) = L / (1 + (b * ℯ^(((-k) * x))))
O: (0, P(0))