Respuesta :
The coordinates need to have an c and a y value (x,y) to answer this question. After you get that you use the distance formula.
[tex] \bf \stackrel{6~units}{\stackrel{P}{\boxed{-7}}\stackrel{\hrulefill }{\rule[0.35em]{2em}{0.25pt}\boxed{-6}\rule[0.35em]{2em}{0.25pt}\boxed{-5}\rule[0.35em]{2em}{0.25pt}\boxed{-4}\rule[0.35em]{2em}{0.25pt}\boxed{-3}\rule[0.35em]{2em}{0.25pt}\boxed{-2}\rule[0.35em]{2em}{0.25pt}}\stackrel{D}{\boxed{-1}}} [/tex]
