Concept explainers
How do You See it? An electronically controlled thermostat in a home is programmed to lower the temperature automatically during the night. The temperature in the house T (in degrees Fahrenheit) is given in terms of t, the time in hours on a 24-hour clock (see figure).
(a) Explain why T is a function of t.
(b) Approximate T(4) and T(15).
(c) The thermostat is reprogrammed to produce a temperature H for which
How does this change the temperature?
(d) The thermostat is reprogrammed to produce a temperature H for which
How does this change the temperature?
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