Answer: The increase in °C per minute of heating time
Step-by-step explanation:
The slope of a line represents the rate of change of the dependent variable (y) with respect to the independent variable .
In the given situation , time (minutes) is the independent variable (x) and the water temperature (°C) on it , so it represents the dependent variable.
Now, the rate of change of y with respect to x is given by :_
[tex]m=\frac{\text{change in y}}{\text{change in x}}=\frac{62-56}{1-0.5}=\frac{6}{0.5}=12^{\circ}\text{perminute}[/tex]
Hence, the slope of the line represent "the increase in °C per minute of heating time".
