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## Homework Statement

The resistance for a wire with cross-sectional radius r is given by R = k/(r^2). Convert this equation to a straight line for which k can be determined from the slope.

## Homework Equations

Equation of a line is:

y = mx + c

## The Attempt at a Solution

R = k/(r^2)

ln(R) = ln(k/(r^2))

ln(R) = ln(k) - ln(r^2)

ln(R) = ln(k) - 2*ln(r)

I'm not sure how to linearize this equation, this is where I get stuck. ln(R) would represent y on the graph. k ought to equal the slope, but I can't see how to do that.