Plot function shows negative values above origin

[Psycho-Pirate]

from sympy import symbols
from sympy.plotting import plot
x=symbols('x')
plot(x/7-22/7, (x, 0, 10), show=True)

Here the plot returned shows negative values on the y-axis above origin.

[moorepants]

What is the issue? It doesn't seem incorrect. What is the expected output?

[Psycho-Pirate]

Well I expected the default origin to be set at (0,0). So that above the x axis all the y values are positive.
Something like this:

[moorepants]

Doesn't that have lots of wasted whitespace? I'm guessing the design uses the limits of the data to minimize dead space.

[Psycho-Pirate]

I just expected the origin to be at (0,0) by default. Even though it is not a rule, usually when graphs are plotted origin is set to be at (0,0). However if minimizing dead space was also kept in mind while designing this function then i guess its fine.

[oscargus]

I think this can be "solved" by printing the X axis at the top for a negative y axis and the bottom for a positive. It is indeed confusing.