I am pretty frustrated with vectors. I have loved all my math courses until this... This makes me hate math. They give no rhyme or reason in the text, lessons, or otherwise as to how this works.. Why does the fraction flip? What is going on... Can someone help. I'm am about ready to pull the plug on this stupid math course. The guy teaching the videos can't spit the words out fast enough as he stares over his bifocals. You can tell he's retired and doesn't want to be there and he doesn't explain ANY of this! Please help me.. I'm so frustrated and ready to quit.