The function
models the resistivity of copper, in nanoohm meters, as a function of the temperature
, in kelvins, of the copper. The graph of
is shown.

The line slants gradually up from left to right.
The line passes through the following points:
(100 comma StartFraction 96 Over 25 EndFraction)
(200 comma StartFraction 246 Over 25 EndFraction)
( 400 comma StartFraction 546 Over 25 EndFraction)
According to the model, which of the following statements about the estimated resistivity of copper is true?