Question 1108580
<pre>.
The distance between two points C(a,b) and D(x,y) in a coordinate plane is


d = {{{sqrt((x-a)^2+(y-b)^2)}}} = {{{sqrt(((-2)-8)^2 + (3-(-1))^2)}}} = {{{sqrt((-10)^2+ 4^2)}}} = {{{sqrt(100 + 16)}}} = {{{sqrt(116)}}} = {{{2*sqrt(29)}}}.
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