Logistic Function

The logistic function is defined as follows f(x) =1/(1+e^(-Wx-B)) where W and B are parameters. What would happen if W increases?

1- The slope of logistic function decreases

2- The slope of the logistic function increases

3- The centre point of the function moves to the left

4- The centre point of the function moves to the right

I selected the 4th option, which seemed correct graphically,
But, the slope also increases.

Thus, both 2 and 4 shouldn’t be correct ?

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