During an experiment, the temperature, in degrees Celsius $(^{\circ}\…

Question

Prompt

During an experiment, the temperature, in degrees Celsius

(^{\circ} C)

of a mixture was recorded to the nearest integer at certain times. The scatterplot shows the recorded temperature

y

, in

^{\circ} C

of the mixture

x

hours after the start of the experiment. What was the average rate of change of the recorded temperature of the mixture over time, in

^{\circ} C

per hour, from

x = 1

x = 3