help understanding the lingua and rules

 

am new at this buisness,i understand the layman understanding of the buzz but i cant just really figure out thr grapichs..actually i was doing mis own currency exchange locally which the idea came to me when i changed school from my country to another,i now discovered the difference and thought more money could be made if you have a higher currency to buy a low one and then use it to do business in that counrty.the idea is kind of scrappy but it could work.then i now discoverd the forex market..in a nut shell i need help understanig..thanks..........lanre femi sr namegam@yahoo.com