rootbeer003:
help
satellite73:
ooohkay
rootbeer003:
just a sec
satellite73:
...
rootbeer003:
i did a 10 paragraph essay today.. so tired
satellite73:
ok we do this one quick ten paragraphs? what is that, like 4 pages?
rootbeer003:
yea
rootbeer003:
and yea do it fast
rootbeer003:
3 questions
satellite73:
plug in the numbers for \(-4\) gives \(\frac{5}{16}\) \(-3\) gives \(\frac{5}{9}\) \((-2, \frac{5}{4})\) \((-1,5)\) \(0\) not in the domain, you cannot divide by zero \((1,5)\) \((2,\frac{5}{4})\) \((3,\frac{5}{9})\) \((4,\frac{5}{16})\)
satellite73:
you have to plot those points yourself
rootbeer003:
mk but can u put them in the box for me? last time i get it wrong
satellite73:
|dw:1488593101315:dw|
satellite73:
you mean draw a box?
satellite73:
|dw:1488593148155:dw|
satellite73:
ugly but whatever
rootbeer003:
damn
rootbeer003:
what else
satellite73:
that is it for the table
satellite73:
next is to plot the points
satellite73:
general picture should look like the one i drew above
satellite73:
no, you should try to actually plot the points we have
rootbeer003:
fine.
satellite73:
much worse
satellite73:
the first one had the right shape at least
rootbeer003:
can u please do it
satellite73:
make sure at least to put a dot at \((-1,5)\) and at \((1,5)\)
satellite73:
also at \((-2,\frac{5}{4}) \) which is \((-2,1.25)\) and \((2,1.25)\)
rootbeer003:
this is taking too long.
rootbeer003:
k lets do something else.
rootbeer003:
save this for tomorrow
satellite73:
ok picture is better, just tighten it up a little to make it look more like the worfram one i sent
rootbeer003:
lets do som dif
satellite73:
fine easier
satellite73:
what discussion board might that be?
rootbeer003:
wym!??
satellite73:
read the question
rootbeer003:
lol
satellite73:
ok so i guess we make our own?
satellite73:
lets pick a starting amount at 400, say it loses 5 gallons a day
satellite73:
so it will be \[y=400-5x\] or if you prefer \[y=-5x+400\] either way
satellite73:
in two days it will lose ten gallons, (five a day) so there will be \[y=-5\times 2+400=-10+400=390\] gallons
satellite73:
b) the slope of the line is the \(-5\) the meaning is that it loses 5 gallons per day a kinda stupid question because that is what they told you it meant to begin with, but whatevs
satellite73:
standard form i guess means \[y+5x=400\] there are two intercepts the y intercept is \((0,400)\) which represents how many gallons you started with (400)
satellite73:
the x intercept is \((80,0)\) which represents how many days it takes for the tank to empty , 80 day because it loses 5 gallons a day and \(5\times 80=400\)
satellite73:
for D you are on your own, perhaps you could say it is unlikely that it would lose EXACTLY 5 gallons a day, so it is an approximation write 10 paragraphs
rootbeer003:
***
satellite73:
done, finished stick a fork in it
rootbeer003:
ok NEXT
satellite73:
...
satellite73:
too bad i don't have access to the discussion board
satellite73:
no help
satellite73:
it says to buy something from some company on some discussion board i can't do it
rootbeer003:
k next
satellite73:
lol
satellite73:
onemore then bedtime
satellite73:
and it better not be a bunch of words with a some board
rootbeer003:
those are al i have left
satellite73:
great
rootbeer003:
after we do that first part ill show u someone elses stuff
satellite73:
ok the nose is at the origin, so evidently the mouth should start below it, but directly below it so maybe it starts at \((0,-2)\)
satellite73:
the easiest parabola opening up would be \(y=x^2-2\) that starts at \((0,-2)\) then if you say it ends at \(x=-2\) and \(x=2\) the mouth would end at \((-2,2)\) and \((2,2)\) not very original, but it should please the teacher enuf
rootbeer003:
so what do i say
satellite73:
you could copy what i wrote except for the "not very original" part
rootbeer003:
lol
rootbeer003:
i dont have to do the other student part so that it for this one?
rootbeer003:
OK NEXT
satellite73:
one more that is it for me
rootbeer003:
:(
satellite73:
hey you were the one who said tomorrow lets hurry
rootbeer003:
what time will u be on tmr ( america time )
satellite73:
american time?
rootbeer003:
its 6:50 right now
rootbeer003:
ignore the 2 other classmate things
satellite73:
american time i would guess would be about 1956 or so at present
rootbeer003:
wat
satellite73:
conjunction means a lot of different things, grammer, math, etc i am going to guess that it means "AND" with inequalities like a number is bigger than 0 and less than 10" or \[0<x<10\] for example
satellite73:
you want a real world example, i would say "my mother will not give me more than $15 to spend at Sephora" the conjunction would be \[0\leq x\leq 15\]
rootbeer003:
WOW
rootbeer003:
ur funny
satellite73:
interval notation would be \[[0,15]\]
rootbeer003:
i will actually use that
satellite73:
why not?
rootbeer003:
hey whats those < with underline called?
satellite73:
|dw:1488596221561:dw|
satellite73:
less than or equal to
satellite73:
so x, representing the pittance your mother gives you, has to be greater than or equal to zero AND less than or equal to 15
satellite73:
yes, that is the "graph" in "discuss what the graph and interval notation would look like"
satellite73:
\[0\leq x\leq 15\] is inequality notation \[[0,15]\] is interval notation that fine artwork is the "graph"
rootbeer003:
it is fine
satellite73:
now for a disjunction it is a little harder to come up with an example with money maybe something else
rootbeer003:
ok is that it?
satellite73:
that is it for the "conjunction"
satellite73:
we need a "disjunction"
satellite73:
which is of the form "x is less than some number OR greater than some other number"
rootbeer003:
get to work buddy
satellite73:
like maybe "the state does not require you to go to school if you are under 6 years old or over 16 years old"
rootbeer003:
i say thaT?
satellite73:
or You cannot smoke within 15 feet of this entrance
satellite73:
but that would be in two dimensions, lets stick to one dimension
satellite73:
yes i guess you could say that why not in reality "disjunction" in math means something not necessarily related to intervals, but that is what it says to use so we use it
satellite73:
disjunction would be \[x\leq 6 \text{ or }x\geq 16\]
satellite73:
where did the llama go?
satellite73:
i say bring back the breck girl
rootbeer003:
its a sloth
satellite73:
how apt!
Eiwoh2:
Keeps changing PfP....Nice...
rootbeer003:
thanks
satellite73:
i want the breck girl back, she was the best
rootbeer003:
you want me to put actually me?
satellite73:
sure why not
satellite73:
you can always change it
Eiwoh2:
Satellite 73...A pleasure to meet the user with the highest level back on OS....:)
satellite73:
@Eiwoh2 thanks!
satellite73:
that was quick
rootbeer003:
why is the pfp thing screwed up
satellite73:
what is a pfp?
rootbeer003:
omg u dident even show me the equation
satellite73:
refresh your browswer
satellite73:
i can see it fine \[x\leq 6 \text{ or }x\geq 16\]
rootbeer003:
still
rootbeer003:
lets try peer answrs
Eiwoh2:
Ppl will have to remember that this site is apparently still beta....It won't be perfect.
Eiwoh2:
Profile picture satellite. That's what they call pfp
rootbeer003:
get on peer answers
satellite73:
oh i have an idea start a new thread this is very long
Eiwoh2:
....True
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