Mathematics
20 Online
OpenStudy (anonymous):
To the nearest unit, what is the distance between points G and H?
A. 12 units <---
B. 13 units
C. 14 units
D. 15 units
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OpenStudy (anonymous):
OpenStudy (anonymous):
i cant read it
what are the coordinates of each point?
OpenStudy (anonymous):
You can't? Why not?
OpenStudy (anonymous):
too small
OpenStudy (anonymous):
maybe \((-4,-6)\) and \((4,4)\) ?
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OpenStudy (anonymous):
is that right?
OpenStudy (anonymous):
lets assume it is right
how far from \(-4\) to \(4\) ?
OpenStudy (anonymous):
@satellite73 would it be x,y or y,x?
OpenStudy (anonymous):
the x comes first, just like in the alphabet
OpenStudy (anonymous):
I think this is what they are...
H - (4,4)
G - (-4,-6)
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OpenStudy (anonymous):
ok like i thought, good
how far in the x direction from \(-4\) to \(4\) ?
OpenStudy (anonymous):
did i lose you?
OpenStudy (anonymous):
No, I'm here. I hate graphs. :( They confuse me. This is what I did to get 12...
OpenStudy (anonymous):
lets go slow
OpenStudy (anonymous):
kk
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OpenStudy (anonymous):
from \(-4\) to \(4\) is \(8\) units to the right
or \(4-(-4)=8\)
OpenStudy (anonymous):
not to slow though. :) it's 12'31 am here.
OpenStudy (anonymous):
from \(-6\) to \(4\) is \(10\) units up , or \(4-(-6)=10\)
OpenStudy (anonymous):
then you are being asked once again for the hypotenuse|dw:1402374720246:dw| of the triangle
OpenStudy (anonymous):
solve
\[8^2+10^2=h^2\] for \(h\)
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OpenStudy (anonymous):
\(8^2+10^2=64+100=164\) making \(h^2=164\) and so \(h=\sqrt{164}\)
OpenStudy (anonymous):
that is close to 13 then 12, since \(\sqrt{164}=12.8\) about
OpenStudy (anonymous):
So I was right?!?! :):):)
OpenStudy (anonymous):
you are right, it is late
past my bed time
unfortunately no, it is closer to 13 than to 12
OpenStudy (anonymous):
Or wait no... 12,8 is going to round up to 13. :)
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OpenStudy (anonymous):
good luck on your exam!