Mathematics
8 Online
OpenStudy (anonymous):
need help with some problems with distance formula
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OpenStudy (anonymous):
yeah? whats the quetion?
OpenStudy (anonymous):
OpenStudy (anonymous):
ok..
OpenStudy (anonymous):
do you know the formula?
OpenStudy (anonymous):
yea would this one be (5,15)
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OpenStudy (anonymous):
\[\sqrt{(x _{2-x _{1}}})^{2}+(y _{2}-y _{1})^{2}\]
OpenStudy (anonymous):
the whole thing is in the square root..
OpenStudy (anonymous):
ok can u help me with it
OpenStudy (anonymous):
sure
OpenStudy (anonymous):
ok what would this one be
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OpenStudy (anonymous):
9,18 is the first set of coordinates, signified by the little 1 on the bottom
OpenStudy (anonymous):
woud u have to put parenthesis around it
OpenStudy (anonymous):
yeah sorry
OpenStudy (anonymous):
so \[x _{1}\]
OpenStudy (anonymous):
is 9
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OpenStudy (anonymous):
and plug it in
OpenStudy (anonymous):
my computer says the format of ur neumeric entry is not valid how should i type it
OpenStudy (jdoe0001):
\(\bf \textit{distance between 2 points}\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
A&({\color{red}{ 9}}\quad ,&{\color{blue}{ 18}})\quad &({\color{red}{ 1}}\quad ,&{\color{blue}{ 12}})
\end{array}\qquad
d = \sqrt{({\color{red}{ x_2}}-{\color{red}{ x_1}})^2 + ({\color{blue}{ y_2}}-{\color{blue}{ y_1}})^2}\)
OpenStudy (anonymous):
u should write the formula on paper
OpenStudy (anonymous):
thank you, JD!
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OpenStudy (anonymous):
that is hard to explain