Question 694608
The US Navy has established time limits for how long a diver can stay at certain depths before he is in danger of the bends. The table is below. 
Depth - # of minutes
25 - 595 
30 - 405
35 - 310
40 - 200
50 - 100 


The data points ranging from 25 feet in depth to 50 feet in depth seem to be nearly linear. Find the linear equation that closely matches those points. Draw it on your graph.
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I used a Linear Regression program on a TI-84 calculator to get:
y = -19.149x + 1011.35
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{{{graph(400,400,-10, 60,-50,600,-19.149x + 1011.35)}}}
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Cheers,
Stan H.