1. The problem statement, all variables and given/known data Find a vector parametric equation r(t) for the line through the points P=(3,0,4) and Q=(1,−3,9) for each of the given conditions on the parameter t. I'm stuck on this one: r(5)=P and r(8)=Q 2. Relevant equations 3. The attempt at a solution I tried finding the parametric equations but it didn't work. I don't really understand how to go about solving this. What is it asking exactly and how would I start? Any help is appreciated.