The set of points I'm interested in is Re$(\bar{z} - i)=2$

Honestly, I have no idea how to even begin. So what I hope is that I can get some general guidelines and steps on how to approach and solve such questions.

Any help or insights is deeply appreciated.

  • $\begingroup$ In this case, it's helpful to note that $\bar z - i$ has the same real part as $z$. $\endgroup$ – Omnomnomnom Jan 12 '17 at 13:54

Let $z=x+iy$ with $x,y \in \mathbb R$. Then

$$\bar{z} - i=x-i(y+1)$$

hence $Re(\bar{z} - i)=x=Re(z)$. Thus, you are looking for points $z$ such that


  • $\begingroup$ essentially a vertical straight line ? $\endgroup$ – some1fromhell Jan 12 '17 at 13:59
  • $\begingroup$ Yes. The line has the equation $x=2$ $\endgroup$ – Fred Jan 12 '17 at 14:00

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