Forex Interest Rate and Currencies

How are interest rated and currencies correlated? For example, if the RBA keeps rates unchanged, how does that affect the currency? If rate is raised, etc.? Thanks for any help in understanding this.

Source.

 

Trend trading is a straightforward forex strategy utilized by numerous traders of all experience levels. Trend trading endeavors to yield positive returns by misusing a markets directional energy. Trend trading for the most part happens over the medium to long-term time skyline as trends themselves change long. Similarly as with price activity, different time span analysis can be embraced in trend trading.