
Concept explainers
The Challenger Disaster After the Challenger disaster in 1986, a study was made of the 23 launches that preceded the fatal flight. A mathematical model was developed involving the relationship between the Fahrenheit temperature around the O-rings and the number of eroded or leaky primar)' O-rings. The model stated that
where the number 6 indicates the 6 primary O-rings on the spacecraft.
(a) What is the predicted number of eroded or leaky primary O-rings at a temperature of ?
(b) What is the predicted number of eroded or leaky primary O-rings at a temperature of ?
(c) What is the predicted number of eroded or leaky primary O-rings at a temperature of ?
(d) Graph the equation using a graphing utility. At what temperature is the predicted number of eroded or leaky O-rings 1? 3? 5?
Source: Linda Tappin, “Analyzing Data Relating to the Challenger Disaster, “Mathematics Teacher, Vol. 87, No. 6, September 1994, pp. 423-426.

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