Answers

2014-11-12T19:42:53+08:00
Distance formula is given as:
d =  \sqrt{(x_2-x_1)^2 + (y_2-y_1)^2}
Substituting the points you'll have
d =  \sqrt{(-1-(-5))^2+(7-(-3))^2}
d =  \sqrt{4^2+10^2}
d =  \sqrt{116}
d =  \sqrt{4(29)}
d = 2 \sqrt{29}
or in decimal
d = 10.77 units
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