hard · SAT Math
A technician is modeling the temperature T, in degrees Celsius, of a cooling metal plate over time m, in minutes, using the linear function T(m) = -2.4m + 85.
Which of the following is the best interpretation of the number 2.4 in this model?
- The temperature of the plate decreases by 2.4 degrees Celsius every minute.
- The initial temperature of the metal plate is 2.4 degrees Celsius.
- The plate reaches a temperature of 0 degrees Celsius after 2.4 minutes.
- The temperature of the plate decreases by 1 degree Celsius every 2.4 minutes.
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