How Many Chart Bottoms Confirm a Trend Line?

To draw a upwards trend line a trader needs at least two bottoms

To confirm a upwards trend line a trader needs at least three price bottoms to touch the upward trend line.

Example of Upwards Trend on a chart

How Many Chart Bottoms Confirm a Trend Line? - How to Use Trend Lines in Trading

Since the trading market moves in a zigzag manner traders normally draw a trend-line which highlights the general upward direction.

How Many Chart Bottoms Confirm a Trend Line? - How to Use Trend Lines in Trading

An up trend occurs when the trading price will form consecutive higher highs and higher lows. Each high is higher than the previous high- higher high, and each low is higher than the previous low- higher low.