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OpenStudy (anonymous):
OpenStudy (ikram002p):
|dw:1403470181592:dw|
OpenStudy (campbell_st):
this is how I do it
\[\frac{AD}{DB} = \frac{5}{3}\]
so 3AD = 5BD
then
for x
\[x = \frac{5 \times 10 + 3 \times 2}{5 + 3}\]
and y
\[y = \frac{5 \times 2 + 3 \times -6}{5 + 3}\]
OpenStudy (ikram002p):
C have same x coordinate to A
OpenStudy (ikram002p):
and have the same y coordinate to D
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OpenStudy (campbell_st):
it uses tor formula for dividing a segment internally
\[x = \frac {mx_{1} + nx_{2}}{m + n}\]
similar for y
OpenStudy (campbell_st):
hope it helps
OpenStudy (anonymous):
wow thanks you guys are good!
OpenStudy (ikram002p):
|dw:1403470599592:dw|
OpenStudy (ikram002p):
:) np
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OpenStudy (anonymous):
wait a sec i know that the x coordinate for C is (2,y) but i cant find y because if i go up 10 woulnd that be (2,4)?
OpenStudy (ikram002p):
i wrote the ration not the answer
OpenStudy (anonymous):
ooh no duh ! 5:3
OpenStudy (ikram002p):
yeah lol multuibly by 2 :P
5*2 :3*2
10:6 :P
OpenStudy (ikram002p):
\(\frac{AD}{DB}=\frac{5}{3}=\frac{10}{6}\)
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OpenStudy (ikram002p):
AD+BD=AB
OpenStudy (anonymous):
so the ansewr would be (2,-1)
OpenStudy (anonymous):
or (7,-1) @campbell_st
OpenStudy (ikram002p):
yes
OpenStudy (ikram002p):
it cant be (7,-1)
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