Mathematics
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OpenStudy (rootbeer003):
please help
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OpenStudy (rootbeer003):
OpenStudy (rootbeer003):
heres the first one that idk
OpenStudy (anonymous):
3rd one
OpenStudy (anonymous):
this one is way way easier tha the others
OpenStudy (mehek.15):
you can't have same x values but different y values
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OpenStudy (anonymous):
pick the one that has no repeats in the first (the \(x\)) coordinate
OpenStudy (rootbeer003):
a?
OpenStudy (anonymous):
in other words, ignore the second coordinates entirely, just look at the first one ans make sure they are all different
OpenStudy (rootbeer003):
oo
OpenStudy (rootbeer003):
c
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OpenStudy (mehek.15):
@Rootbeer003 In A, 2 is repeated for x so it can't be A
OpenStudy (mehek.15):
ye C
OpenStudy (anonymous):
A has a repeated 2 in the first spot, so not -that one
OpenStudy (rootbeer003):
OpenStudy (rootbeer003):
am i right
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OpenStudy (anonymous):
no
OpenStudy (rootbeer003):
oh 14
OpenStudy (rootbeer003):
did it wrong
OpenStudy (anonymous):
\[f(x)=2-3x\\
f(-4)=2-3\times (-4)\]
OpenStudy (anonymous):
yeah 14
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OpenStudy (rootbeer003):
OpenStudy (rootbeer003):
idk this
OpenStudy (rootbeer003):
b?
OpenStudy (anonymous):
they are asking for the value of \(x\) for which \(x+4=0\)
OpenStudy (anonymous):
so no, not B
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OpenStudy (rootbeer003):
a?
OpenStudy (anonymous):
lol now you are guessing
i am sure you can solve \[x+4=0\] for \(x\) right?
OpenStudy (rootbeer003):
is its a
OpenStudy (rootbeer003):
so*
OpenStudy (anonymous):
no, A is \((0,4)\)
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OpenStudy (anonymous):
what is \(x\) if \(x+4=0\)?
OpenStudy (rootbeer003):
so b
OpenStudy (rootbeer003):
lol im so dumb
OpenStudy (rootbeer003):
its so b
OpenStudy (anonymous):
no, you are just guessing
don't guess
solve \[x+4=0\] for \(x\)
if it is not clear how to do it, just say so
forget about abcd for a second
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OpenStudy (rootbeer003):
lol k
OpenStudy (rootbeer003):
idk
OpenStudy (anonymous):
did you solve \[x+4=0\] yet?
OpenStudy (rootbeer003):
its 4
OpenStudy (anonymous):
no \(4+4=8\) not zero
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OpenStudy (rootbeer003):
0
OpenStudy (rootbeer003):
-4
OpenStudy (rootbeer003):
OHHH WOOOW
OpenStudy (anonymous):
i don't mean to torture you lets solve it ok?
if \(x+4=0\) then if you subtract \(4\) from both sides you get \(x=-4\)
whew you got it!
OpenStudy (rootbeer003):
so c
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OpenStudy (anonymous):
so if \(x=-4\) then you have \(|-4+4|=0\) the point is \((-4,0)\)
OpenStudy (anonymous):
yeah C
OpenStudy (rootbeer003):
OpenStudy (rootbeer003):
the secound one says d so
OpenStudy (rootbeer003):
i was thinking the last one?
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OpenStudy (anonymous):
ok once again lets solve\[x-3=0\]for \(x\)
OpenStudy (rootbeer003):
-3
OpenStudy (anonymous):
lol no
OpenStudy (anonymous):
\[-3-3=-6\] not zero
OpenStudy (rootbeer003):
3
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OpenStudy (anonymous):
yes
OpenStudy (anonymous):
that means the point \((3,0)\) is the lowest point on the V shaped graph
OpenStudy (rootbeer003):
so its on the positive side
OpenStudy (anonymous):
ah you have to copy and past that
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OpenStudy (anonymous):
yes, on the positive side
OpenStudy (rootbeer003):
a?
OpenStudy (anonymous):
ok go ahead pick from abcd
OpenStudy (anonymous):
yes
OpenStudy (rootbeer003):
yay
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OpenStudy (rootbeer003):
OpenStudy (rootbeer003):
am i right
OpenStudy (anonymous):
yay?
OpenStudy (rootbeer003):
i meant on the one before
OpenStudy (anonymous):
yes
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OpenStudy (anonymous):
oh ok site is lagging for me
OpenStudy (rootbeer003):
im right on that one?
OpenStudy (anonymous):
yes
OpenStudy (rootbeer003):
OpenStudy (anonymous):
yes
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OpenStudy (rootbeer003):
OpenStudy (rootbeer003):
well it says im typing when im not so
OpenStudy (anonymous):
the last one is not right
OpenStudy (anonymous):
\[-6\times -4=24\] so you need \[-6\times 12\]
OpenStudy (rootbeer003):
i still dont know
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OpenStudy (anonymous):
what is \(-6\times 12\)?
OpenStudy (rootbeer003):
oh are you talking about the one i chose -2 on?
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
-2 is wrong
OpenStudy (rootbeer003):
-72
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OpenStudy (anonymous):
you divided,,you should multiply
-72 is right
OpenStudy (rootbeer003):
oh ok
OpenStudy (rootbeer003):
OpenStudy (rootbeer003):
how bout dis
OpenStudy (anonymous):
how the hell are you supposed to know this?
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OpenStudy (rootbeer003):
what?
OpenStudy (anonymous):
i have no idea how you are supposed to know this , but the second one down
the one with (2,1), (3,4) , (4,9) ,(5,16) is the same as \[y=(x-1)^2\]
OpenStudy (anonymous):
i think that is what they mean by "quadratic variation"
is is certainly not the last two
OpenStudy (rootbeer003):
huh so b