Mathematics, 29.06.2019 17:30 josie311251
Points r(2,-1) and s(-5,3) are in the standard (x, y) coordinate plane. what is the length of rs in coordinate units? a. 10 b. 65 c. 2√13 d. √33 e. √65
Answers: 1
![\bf ~~~~~~~~~~~~\textit{distance between 2 points} \\\\ R(\stackrel{x_1}{2}~,~\stackrel{y_1}{-1})\qquad S(\stackrel{x_2}{-5}~,~\stackrel{y_2}{3})\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ RS=\sqrt{[-5-2]^2+[3-(-1)]^2}\implies RS=\sqrt{(-5-2)^2+(3+1)^2} \\\\\\ RS=\sqrt{49+16}\implies RS=\sqrt{65}](/tpl/images/0031/8180/b4fd4.png)
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Points r(2,-1) and s(-5,3) are in the standard (x, y) coordinate plane. what is the length of rs in...
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