Firing a piece of pottery in a kiln takes place at different temperatures for different amounts of time. The graph below
shows the temperatures in a kiln while firing a piece of pottery
after the kiln is preheated to 200°F.
1600
(8,1800)
(5,1840)
E
1200
112.5,1300)
Temperature (°F)
800
(1.5,900)
(1.700)
During which time interval did the temperature in the kiln show
the greatest average rate of change?
400
10
Time (hours)
Q Zoom
A
1 hour to 1,5 hours
B
2.5 hours to 5 hours
С
5 hours to 8 hours
D
O to 1 hour