find the constant rate of change between the two quantity is shown in each graph explain your reasoning
![find the constant rate of change between the two quantity is shown in each graph explain your reasoning class=](https://us-static.z-dn.net/files/d65/b7b6661a8e44052fd0814ae0871ed6cc.jpg)
The rate is that the temperature is decreasing 20 degrees per 10 hours.
This can be reduced to decreasing 2 degrees per hour.
This written out as a number is -2 deg/h