a graph c(t)= b/(1 + e^-k/(t-a)). a=b=k=1. draw three different graphs and write a report with it about what happens when you change the 'a' value, change the 'b' value and change the 'k' value. Within the reports use the graphs as evidence and explain how the key features are affected from the values changing .

Effect of changing a 1.0 a=0.5 a=1 a=1.5 0.8 0.6 c(t) 0.4 - 0.2 - 0.0 -2 -1 0 N W 4Effect of changing b b=0.5 b=1 1.75 b=2 1.50 1.25 1.00 0.75 0.50 0.25 0.00 -2 0 2 W 4Effect of changing k 1.0 k=0.5 k=1 k=2 0.8 0.6 c(t) 0.4 0.2 - 0.0 -2 0 2 W 4