data on lamellar spacings and transformation temperatures

Dampi

Hey,

I have data on lamellar spacings and transformation temperatures for pearlite transformation in a plain carbon eutectoid steel. How do I prove the data conforms with Zener's equation??

I know that S (lamellar spacign) is inversely proportional to Delta T ( Eutectoid temperature minus transformation temperature). I don't know the exact equation that relates S and T (transformation).

The 2n part of the question is to find the Eutectoid temperature. I think i can find that after I plot a linear graph and get the gradient.

Please Help!!