Precalculus 10.2 Parabolas

This lesson explains parabolas, including finding the vertex, focus, and directrix, and using those to write equations and make the graph. In alignment with Larson's Precalculus, this video has plenty of examples and worked-out practice problems, including a word problem. #Shaffer, #precalculus, #Larson, #parabolas, #focus, #directrix, #vertex, #examples, #problems, #tutor, #tutorial, #free, #homeschool