Biologists have found a linear relationship between the temperature of the environment and the chirp rate of a particular species of cricket. Let T(x) represent the temperature (°F) as a function of the chirp rate (chirps per minute). Suppose the cricket's chirp rate is 72 chirps per minute when the temperature is 57 °F, but the cricket does not chirp at all when the temperature is 40 °F. (a) Write a formula for the temperature as a function of the cricket's chirp rate. Give an exact answer. T(x) = (b) What are the units of the slope of T(x)? ---Select---

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