or 
, and plug
in the time from the previous part to find out how far they went... This is also a
good way to check the answer in part a, i.e. plug in the time to both equations and
make sure you get the same distance...
Compared to the last part, this is easy. Now that we know how long it takes for the
dog to reach the jogger, we can pick either or , and plug
in the time from the previous part to find out how far they went... This is also a
good way to check the answer in part a, i.e. plug in the time to both equations and
make sure you get the same distance...
So they meet after 