The graph above shows the temperature , in degrees Celsius, of an object minutes after it is placed in a cooling chamber. Which of the following statements is true based on the graph?
[Graph description: A line passes through the points (0, 20) and (4, 12). The x-axis is labeled 'Time (minutes)' and the y-axis is labeled 'Temperature (degrees Celsius)'.]
The initial temperature of the object was 12 degrees Celsius.
The temperature of the object decreases by 2 degrees Celsius every minute.
The temperature of the object increases by 2 degrees Celsius every minute.
After 20 minutes, the temperature of the object will be 0 degrees Celsius.
