Mathematics
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OpenStudy (anonymous):
Use the slope formula to find the missing coordinate.
R(0, _____ ), S(-4, 2) m = 5
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OpenStudy (callisto):
\[slope =\frac{y_2-y_1}{x_2-x_1}= \frac{y-2}{0-(-4)} = 5\]\[\frac{y-2}{4} = 5\]Can you solve it?
OpenStudy (anonymous):
thank youu!!! really appreciate the explanation!!! <3
OpenStudy (callisto):
welcome :)
OpenStudy (anonymous):
wait im sure its not 22.....
OpenStudy (callisto):
m=5 is the slope, right?
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OpenStudy (anonymous):
yes
OpenStudy (callisto):
Then.. it should be correct :|
OpenStudy (anonymous):
ohh ok:)
OpenStudy (anonymous):
T(13, 2), W( ___ , -5) m = 7/2 <----what would i do here???
OpenStudy (callisto):
\[slope =\frac{y_2-y_1}{x_2-x_1}= \frac{2-(-5)}{13-x} = \frac{7}{2}\]
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OpenStudy (anonymous):
how would i do the next step?
3/ 13-x =7/2
OpenStudy (callisto):
\[\frac{2-(-5)}{13-x} = \frac{7}{2}\]\[\frac{2+5}{13-x} = \frac{7}{2}\]Cross multiplication\[2(2+5) = 7(13-x)\]
OpenStudy (anonymous):
16= 7(13-X)
OpenStudy (anonymous):
so thenn... i divide by 7?
OpenStudy (callisto):
2(2+5) = 7(13-x)
2(7) = 7 (13-x)
Divide both sides by 7
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OpenStudy (anonymous):
omg.. my math is not good today
OpenStudy (anonymous):
its 6 right
OpenStudy (anonymous):
dont tell me its not 6..... D:
OpenStudy (callisto):
It's not....
OpenStudy (callisto):
2(7) = 7 (13-x)
2 = 13 -x
x = ... ?
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OpenStudy (anonymous):
-.-
OpenStudy (anonymous):
wait
OpenStudy (anonymous):
11...
OpenStudy (callisto):
Yes :)
OpenStudy (anonymous):
id give you another medal.. cause im soo not smart-.-
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OpenStudy (callisto):
Nope :| Just be careful with the calculations !!
OpenStudy (anonymous):
okay:D