Question

What equation represents the relationship between the number of degrees (F) the thermostat is set to and the daily energy usage (E) in kilowatt-hours (kWh) for this household?

Option 1: E = 41 - 1.5F
Option 2: E = 41 + 1.5F
Option 3: E = 41 - 1.5/F
Option 4: E = 41 + 1.5/F

Answer 1

The equation that represents the relationship between thermostat temperature and daily energy usage is E = 41 - 1.5F.

Step-by-step explanation:

The equation that represents the relationship between the number of degrees (F) the thermostat is set to and the daily energy usage (E) in kilowatt-hours (kWh) for this household is E = 41 - 1.5F.

Based on the given options, Option 1: E = 41 - 1.5F is the correct equation.

This equation shows that for every degree the thermostat is set lower (F decreases), the daily energy usage (E) increases by 1.5 kilowatt-hours.