If traders are positive on the prospects for the Yen, they would expect the number on the right to go down – i.e. the Yen would be getting stronger against the Dollar. Traders would be buying less Yen with a Dollar as the Yen got stronger. Similarly, if the Yen was expected to weaken, forex traders would expect the Yen number to go up, reflecting the fact that the dollar could buy more yen.

Sometimes a market breaks out of a range, moving below the support or above the resistance to start a trend. How does this happen? When support breaks down and a market moves to new lows, buyers begin to hold off. This is because buyers are constantly noticing cheaper prices being established and want to wait for a bottom to be reached. At the same time, there will be traders who are selling in panic or simply being forced out of their positions.

Forex is always traded in pairs – for example AUD/USD. You speculate on whether the price of one country's currency will rise or fall against the currency of another country, and take a position accordingly. Looking at the AUD/USD currency pair, the first currency (AUD) is called the 'base currency' and the second currency (USD) is known as the 'counter currency'. 

Trading foreign exchange on margin carries a high level of risk and may not be suitable for all investors. The high degree of leverage can work against you as well as for you. Before deciding to trade foreign exchange you should carefully consider your investment objectives, level of experience and risk appetite. The possibility exists that you could sustain a loss of some or all of your initial investment and therefore you should not invest money that you cannot afford to lose. You should be aware of all the risks associated with foreign exchange trading and seek advice from an independent financial advisor if you have any doubts.