Entomologists have discovered that a linear relationship exists between the number of chirps of crickets of a certain species and the air temperature. When the temperature is 60° F, the crickets chirp at the rate of 120 times/minute, and when the temperature is 70° F, they chirp at the rate of 150 times/minute. Find an equation giving the relationship between the air temperature T and the number of chirps/minute N of the crickets.
?
A. 
B. 
C. 
D. 
E. 
Answer: E
Mathematics
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A. 
B. 
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D. 
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