equation of a vertical line passing thru given point

[Sambo]

Can anyone help me with calculating the equation of a vertical line passing thru point -1,3. I got y=-1 but not sure if thats right. Please let me know if your answer is different

 

[tkhunny]

Close.

(X,Y)

y = -1 is a horizontal line.

x = -1 is a vertical line through -1