Electronics The resistance y (in ohms) of 1000 feet of solid copper wire at 68 degrees Fah...

Electronics The resistance y (in ohms) of 1000 feet of solid copper wire at 68 degrees Fahrenheit is

where x is the diameter of the wire in mils (0.001 inch),

(a) Complete the table.

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(b) Use the table of values in part (a) to sketch a graph of the model. Then use your graph to estimate the resistance when x = 85.5.

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(c) Use the model to confirm algebraically the estimate you found in part (b).

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(d) What can you conclude in general about the relationship between the diameter of the copper wire and the resistance?