Question 511101
Distance between two points													
x1	y1	x2	y2										
d= 	{{{sqrt((y2-y1)^2+(x2-x1)^2)}}}												
-3	2	5	-1										
d= 	{{{sqrt((		-1	-	2	)^2	+	(	5	-	-3	)^2	)}}}
d= 	{{{sqrt((		-3	)^2	+	(	8	)^2	)}}}				
d= 	{{{sqrt((		73	)  	)}}}								
d= 	8.54