An Electronically Controlled Thermostat in a Home Is Programmed to Lower

question 59

Multiple Choice

An electronically controlled thermostat in a home is programmed to lower the temperature automatically during the night. The temperature T, in degrees Fahrenheit, is given in terms of t, the time on a 24 hour clock, as shown in the figure. The thermostat is then reprogrammed to produce a temperature H where $H ( t ) = T ( t ) - 2$ . Explain how this changes the temperature of the house.

• A)The temperature of the house during the day will be 2 degrees cooler, and night will be 2 degrees warmer.
• B)The temperature of the house during the day and night will be 2 degrees cooler.
• C)lowers the temperature of the house 2 hours later at night, and warms up the temperature of the house 2 hours later in the morning
• D)The temperature of the house during the day will be 2 degrees warmer, and night will be 2 degrees cooler.
• E)The temperature of the house during the day and night will be 2 degrees warmer.

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