Line chart is preferred as the lookup period is vast which is minimum 2 year of daily chart.
When there is a Higher top observed which is followed by Higher Top with notable Volume it is called the bullish trend as per Dow and that is the perfect time to create Long Position.
If a Lower top followed by Lower bottom with volume is identified that symbolizes the bearish trend which is a good sign of creating Short position.
For the above explained, the trend remains to be reliable until it reaches the “Higher Top” for Long position and “Lower Bottom” for short position.
Support level is a term which represent the price value around which Demand(Buyers) is strong enough to prevent the Price from falling further.
Resistance level is a term which represents the Price value around which the Supply(Sellers) is strong enough to prevent the price from moving higher.
Hi,
your answers are brief and appropriate.