Question 1136079
( -4, 6 ), ( -4, -2 )
Look at the slope first
slope = [ change in y ] / [ change in x ]
slope = {{{ ( -2 - 6 ) / ( -4 -(-4) ) }}}
slope = {{{ -8 / 0 }}}
The slope is infinite, so this is a vertical line.
Every point on this line sees {{{ x = -4 }}}
for it's x-value, so that is the equation