The displacement of a wave disturbance propagating in the positive x-direction is given by
`y =(1)/(1 + x^(2))`at `t = 0` and `y =(1)/(1 +(x - 1)^(2))` at `t =2s`
where, `x` and `y` are in meter. The shape of the wave disturbance does not change during the propagation. what is the velocity of the wave?

Explanation

To find the velocity of the wave, we can follow these steps:

### Step 1: Understand the given equations
At time \( t = 0 \), the displacement is given by:
\[ y = \frac{1}{1 + x^2} \]
At time \( t = 2 \) seconds, the displacement is given by:
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