A like the Notion of Support/resistance "areas or zones" not...

A like the Notion of Support/resistance "areas or zones" not Lines per say ... So lets say a stock has gone down to 51.5c and has bounced back up from there ... So my support "area" will be 52.5 - 48.5 ......lines are too strict. IE so the next time the share price movement approachs the area/zone slows above 51.5c next time but start to encounter "Support" above this line ...