This is a level on the chart which is the price at which traders monitor buyers ("bulls" - see), and do not allow the price to fall below this line, constantly making deals to buy. A support line can be set up through your terminal. Select the top menu bar, above the graph, click on the oblique line - trend. And set it so that it runs along the lower border of several recent well-marked fluctuations on the price chart. Here you will see a support line. The price should reach the support line at the upper boundary - line resistance (see) and come back. If the price suddenly goes below this line, there will be a "breakdown" (see). This means that more people want to sell currency on the market than buy it.
Trading in financial markets involves substantial risks, including complete possible loss of investment capital. This activity is not suitable for all investors. High leverage increases the risk (Risk Disclosure).