Hi Khan Academy! I'm writing on the "comparing linear rates" exercise and video, and its "Modeling with linear equations and inequalities" lesson, in "Linear equations & graphs" unit of Algebra 1. I'm not linking as hyperlinked posts don't get quickly published, and this is an urgent request.
I'd love more context for getting to the level of interpreting and modelling such word problems. It's not functions yet, just linear eqs and ineqs, yes, and Sal's explainer does an amazing job in helping in problem-solving. But for more intuition I really really need more videos - one or two more - showing how this connects to the earlier linear eqs and ineqs I'd studied in the same unit.
Right now it's almost like jumping over a chasm, and I need an organic root bridge showing the connections. Please consider this quick Algebra 1 request, as it's one of your best Math courses ever. This improvement will make this unit meaningful to classrooms worldwide. And yes, I'd posted this after I saw a student struggle with this problem due to lack of context.