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- #1

So I know that $-\infty < x < \infty$ and $-1 < y < 1$.

Then

$$

\frac{x + yi}{x + i(y + 1)}

$$

Now if I take the the line y = -1, I have

$$

\frac{x-i}{x}

$$

Then find out what happens when y = 1.

Is this the correct way to do this type of problem?