Question 1171985
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<pre>

Apply the distance formula


    d = {{{sqrt((x[2]-x[1])^2 + (y[2]-y[1])^2)}}}.


In your case  ({{{x[1]}}},{{{y[1]}}}) = (-4,-1),  ({{{x[2]}}},{{{y[2]}}}) = (-5,5).


THEREFORE,


    d = {{{sqrt((-5-(-4))^2+(5-(-1))^2)}}} = {{{sqrt(1^2 + 6^2)}}} = {{{sqrt(1+36)}}} = {{{sqrt(37)}}}.


<U>ANSWER</U>.  The distance between two given points is  {{{sqrt(37)}}}  units.
</pre>

Solved.


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Memorize the formula and the way on how it works.


You will see and use this formula hundreds of times in your life.