How to Linearize Data for Solar System Motion Analysis?

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To linearize the data for solar system motion analysis, the user graphed the period against average distance but found it resembled a square root graph. Attempting to take the square root of the horizontal data resulted in a quadratic shape, and squaring the data returned to the original format. The user is unsure how to proceed to establish a linear relationship between the period and average distance from the Sun. A suggestion was made to use logarithmic scales on the axes, which could help reveal the underlying relationship. The user seeks assistance in creating a mathematical model that accurately describes this relationship.
Faye716
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Hi,
I'm supposed to linearize this set of data:

"Below is a data set which includes information about the motion of the objects in the solar system. Note: the periods are listed in Earth years (time it takes the Earth to complete one orbit around the Sun) and the average distances are reported in astronomical units (1 au is a an average distance from Earth to the Sun)."

Period (yrs)

0.241

0.615

1.00

1.88

11.8

29.5

84.0

165

248

Average Distance (au)

0.39

0.72

1.00

1.52

5.20

9.54

19.18

30.06

39.44

So I plotted it, and it turned out looking like this:
upload_2017-8-24_20-29-36.png

Since this looks like a square root graph to me, I took the square root of the data on the horizontal axis and plotted that. However, that ended up looking like a quadratic. In order to linearize that I would generally square the data on the horizontal axis, however that would just give me the original data again. I am stuck and do not know what to do.

After I graph and linearize it, I am supposed to "Create the mathematical model (equation) that describes the relationship between the period of an object and its average distance from the Sun. Show all work." and since I cannot linearize the data I do not know the relationship between the Period and Average distance.

Thanks in advance for the help!

Ps: Sorry if this is in the wrong forum I was not sure where to put it
 
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Change the scales on the axes to logarithmic scales. This can be done automatically by your graphics program.
 
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This law is one of the great achievements of the human mind. Look at my avatar. (I can not help you more without spoiling the task)
 
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The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?

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