The graph shows the temperature of a room, in degrees fahrenheit, over time, in minutes. how long was the temperature decreasing? min the graph has degrees fahrenheit on the y-axis and time in minutes on the x-axis. the graph has five sections.
section 1 is a line from point 0, 65 to point 20, 75.
section 2 is a line from point 20, 75 to point 40, 75.
section 3 is a line from point 40, 75 to point 50, 63.
section 4 is a line from point 50, 63 to point 70, 75.
section 5 is a line from point 70, 75 to point 80, 75.