Parts Per Thousand & Gradients Question

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SUMMARY

The discussion centers on converting a gradient of -0.003311 into parts per thousand (ppt) within the context of a linear equation representing distance and elevation. The equation provided is Y = -0.00331x + 9907.333, indicating that for every 1 unit moved in the x-plane, there is a corresponding movement of -0.003311 units in the y-plane. The correct interpretation of parts per thousand in this context is that it refers to movement in the y-plane for every 1000 units moved in the x-plane.

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tomtomtom1
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Hello all

I was wondering if anyone could help me with the following:-

The equation of a line is Y = -0.00331x + 9907.333.

The equation represents distance (x) and elevation (y)

The gradient is -0.003311. What is number represents is for every 1 unit I move in the x plane I move -0.003311 in the y plane.

My question is how do I convert -0.003311 into parts per thousand?

Does part per thousand mean for every 1000 units I move in the x plane how much do I move in the y plane or does it mean for every 1000 units I move in the y plane, how much do I move in the x plane??

Can anyone help?

Thank you in advance
 
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tomtomtom1 said:
My question is how do I convert -0.003311 into parts per thousand?

Does part per thousand mean for every 1000 units I move in the x plane how much do I move in the y plane or does it mean for every 1000 units I move in the y plane, how much do I move in the x plane??
It's the former.
 

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