Initial point list
Point:(0,0). Point:(5,9). Point:(5,4). Point:(7.1,-13). 
Point:(5,-2). Point:(14,-3.4). 

Found with delegate predicate: Point:(5,9). 

Found with static member predicate: Point:(5,9). 

All points with x coordinate 5
Point:(5,9). Point:(5,4). Point:(5,-2). 

Index of Point:(5,4).  2