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ineedyouubiebs
 one year ago
I know this is not math but whatever. If the mass is 1.16 and the volume is 8.5 what is the slope?
ineedyouubiebs
 one year ago
I know this is not math but whatever. If the mass is 1.16 and the volume is 8.5 what is the slope?

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ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0In my HW it says to find the slope it's (change in mass)/(change in volume)

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0@Luigi0210 help please?

Luigi0210
 one year ago
Best ResponseYou've already chosen the best response.0Do you know the changes?

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0What do you mean by that?

Luigi0210
 one year ago
Best ResponseYou've already chosen the best response.0Do you only have one set of values?

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0Oh no there's more. Want me to put them up?

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0Label 1) mass: 1.16 g volume:8.5 . Label 2) mass:0.98 volume: 7.2. Label 3) mass: 1.13 volume:10.0 . Label 4) mass: 0.69 volume: 6.2. Label 5) mass: 0.83 volume:6.0. Label 6) mass:1.45 volume: 12.9. Label 7) mass: 0.88 volume: 7.9. Label 8) mass: 1.03 volume: 7.5. Label 9) mass: 0.74 volume: 5.4. Label 10) mass: 1.02 volume: 7.5

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0Sorry I couldn't lined them up well I'm on my iPad right now

Luigi0210
 one year ago
Best ResponseYou've already chosen the best response.0I got nothing, sorry

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1what happens if you treat the mass as the x coordinate and the volume as the y coordinate?

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0But that'll mean graphing all 10 of them

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0@dumbcow @dan815 got any ideas how to do this?

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0@Luigi0210 don't worry(:

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1tryin to find a website the will plot all the points

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.0kant, use this site, it's quite good :) https://www.desmos.com/calculator

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1looks like the slopes are about the same for a series of points...not sure what the question is looking for

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1thanks zepdrix i'll check that site too...the one i found called http://openstudy.com/study#

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1I'm missing clone wars for this!

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0@kantalope lol my bad and how does this help me find what I'm looking for?

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1typically when you are looking for slope you are looking for the change in whatever based on the change in the other thing.....these changes aren't a straight line. what else does the question have?

ⒶArchie☁✪
 one year ago
Best ResponseYou've already chosen the best response.4it is a bit confusing that a slope can be asked when mass and volume are given. However, if the slope is meant to mean density, then I will say the slope= mass/volume.

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1if the data has a function we can find the variable slope based on the derivative of the function

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1heh  I'll bet I'm supposed to be able to figure out this kind of problem at the end of the semester not the beginning...and the martini I just finished in not helping...

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1I'm rearranging the data on the graph...

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0http://mcpchemistry1.wikispaces.com/file/view/HW4%20%20Density%20Graph%20Practice%20201314.doc/447730728/HW4%20%20Density%20Graph%20Practice%20201314.doc here is my HW, the question is on the last page

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1The points are all squirrely so a serious person would do some stat regression to find the mean

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1Ah ha...which is exactly what the graph was finding

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0I think your looking at the wrong page, it's the very last one

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1right so my pictures were plots of the data that we were given...it is all wonky

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1If we were measuring stuff that had a consistent mass to volume ratio the line would be nice and straight....the more stuff we had the more it would weigh yea?

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0Yeah it is all "wonky" ughhh this is irritating

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1that's ok that is how real data works

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0Yeah, I know what your saying

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0You sure I'm not just suppose to divide or subtract?

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1so our data is sloppy could mean a couple of things like the hint suggests  maybe some of the chunks we are looking at are real rocks and some are plastic fake rocks

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1nah if you were serious about this data you would plot it out like we did and look if it was in straight lines...if it was not you would do a process called regression to find the average slope between the plot points

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1right so some of metal is real and some of it isn't or some of the metal is a different kind or you could just be kinda sloppy in measuring the volume or the mass...rounding up sometimes and rounding down others or if you have different people doing the measuring the data will get screwy

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0Becauseatfirst I taught I was only suppose to divide and ill get the answer, but apparerently not

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1So for the last page you can paste in the plots in the pictures and a hypothesis is that the measurements are not consistent and that there seems to be two different trend lines in the data so there are probably two different kinds of metal in the sample with two densities regression wiki: http://en.wikipedia.org/wiki/Least_squares

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1If you did just divide each set of points to get a series of numbers....I'll bet you get two sets of answers...lemme check that

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1actually turns out that there are more like 3 sets of ratios  .14 is the answer to 3 samples .111 to three and .138 to three more < this also points to something funny with the data if the ration of volume to mass was the same all the samples would have basically the same well ratio ya so just dividing would show something but the graph makes it easier to see

mary.rojas
 one year ago
Best ResponseYou've already chosen the best response.2Can you explain in a different way, she cant understand

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1If the samples were consistent  all made of the same stuff  if you had more stuff it would weigh more....a big gold coin has more mass (weighs more) than a small gold coin...and that change in size and mass would be consistent. A coin that is twice as big would weigh twice as much....does that make sense?

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0Yes, I do understand that thAt was one of the questions lol

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1so if i started handing you coins that were twice as big but didn't weigh twice as much ...you would say "dood, you are rippin me off, these are not gold coins" that is what the first graph is showing ....there are four coins in the top line with a certain volume to weight ratio (slope) and then 6 coins in another line with a different volume to weight ratio(slope)

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0Somehow I think I'm just suppose to divide, and I'm just complicating myself!

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1well number 2 on the second to last page says graph it....so there is that

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0Yeah and I already graphed it

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1and the graph show some dots that make a line and some other dots that make a different line?

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1so the last question says to calculate the slope of each of those lines m= (y1y0) / (x1x0) if you pick any two points on the two lines you can get the slope

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0Can you do the first one as an example? Please

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1ok top line the first point is (.69, 6.2) and another point on that line looks like (1.45, 12.9) would you agree?

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1y1= 12.9 y0 = 6.2 x1= 1.45 x0 = .69 6.7/.76 = 8.82

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0No it's suppose to be 1.16 and 8.5

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1the points on the other line are (0.74,5.4), ( 0.83,6.0), ( 0.98, 7.2), ( 1.02 ,7.5), ( 1.03, 7.5), (1.16,8.5) you can use any of those points to calculate the slope of the second line

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1I started with the top line....that point is on the lower line...you can go with whatever one first

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0So I'll divide it like 1.16/8.5 correct?

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1not if you want to calculate the slope like the last question asks...dividing will just get you the ratio not the slope...

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1I made the graph bigger so it is easier to see the two different lines....we are looking for the slope of those two lines I think that the instructions are confusing as they ask for the change in mass over the change in volume....simply dividing is not the change....it is just the mass over the volume...in order to get the change part you have to do the y1y0 thing

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1I hope that means you are going ...ah, I get it rather than ah @$%$ it =)

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0Ahhhh crap? Lol I think I'm complicating it more that I should that's why , but that's all

kantalope
 one year ago
Best ResponseYou've already chosen the best response.1k gl im out its really late here

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0Yeah get some sleep goodnight
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