Answer:
B.
Step-by-step explanation:
The given line is
[tex]x=8[/tex]
It's important to know that all lines that have the form [tex]x=k[/tex], where [tex]k[/tex] real number, then taht line is vertical. And all lines that have the form [tex]y=k[/tex], are horizontal lines.
So, we just need to find the choice that has the form [tex]x=k[/tex], which is option B.
Therefore, [tex]x=7[/tex] is parallel to [tex]x=8[/tex], because both of them are vertical lines, that is, they both have 90° as angle of inclination.
