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April 8th, 2015, 01:17 PM   #1
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Polynom regression temperature in the the atmosphere

Temperature in the atmosphere variates much because the ozon layer and greenhouse effect affects the different air layers. On a particular location right between equator is the temperature T(X) one day measured in different heights x over the ground. The table shows some of the result :
A)Find the regression on a third grade function: T(x)= -0.0025x^3 + 0.2875x^2 - 8.9375x + 37,8125.

B) What was the temperature on the ground that day? I can't find an answer to that, i am stuck there. I don't know how to calculate that.
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April 10th, 2015, 05:11 AM   #2
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x is the height, so what is x at ground level?
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April 10th, 2015, 12:18 PM   #3
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It's 0. There is no height in the ground and that means it's 0. You do T(0) and end up with + 37,8175 = 38 Degrees,

Last edited by Zman15; April 10th, 2015 at 12:28 PM.
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