Question 164869
find the distance between 
(-3,5) and (-6,-7)
-----------------
The distance is {{{sqrt((y2-y1)^2 + (x2-x1)^2)}}}
= {{{sqrt((-7-5)^2 + (-6-(-3))^2)}}}
={{{sqrt((-12)^2 + (-3)^2)}}}
={{{sqrt(144 + 9)}}}
={{{sqrt(153)}}}
={{{3*sqrt(17)}}}