Question 793582
Any line perpendicular to the y-axis has the
form {{{ y = c }}} where {{{ c }}} is a constant
This line goes through ( 5,8 ) , but it also goes through 
(-10,8 ), ( 2047, 8 ), and (0,8 ).
So, it doesn't matter what {{{x}}} is.
The equation of this line is {{{ y = 8 }}}