1. The problem statement, all variables and given/known data at noon a train leaves B heading East at 90 mi/h to C which is 450 miles away at 12:15 pm a train leaves C heading West to B at 100 mi/h. When will they pass each other? 2. Relevant equations t=0 when train leaves B and train leaving C is ) at t=15min 3. The attempt at a solution Graph hours on the x axis and miles on the y axis, but how do you graph the train leaving C? I don't see how the lines intersect. Where do I go to get basic information on these types of problems?