How do I plot lines parallel to Y axis in X-Y plane?

I need to draw lines parallel to Y axis in the X-Y plane. I want to draw the lines for x = 0.1, 0.2, 0.3 and so on

Answer 1

[Walter Roberson]

https://www.mathworks.com/help/matlab/ref/xline.html xline() since R2018b

refline() for older MATLAB.