Scientists are studying the temperature on a distant planet. Let represent the temperature (in degrees Celsius). Let represent the height above the surface (in kilometers). Suppose that x and y are related by the equation y =36-3x Answer the questions below.
Note that a change can be an increase or a decrease.
For an increase, use a positive number. For a decrease, use a negative number.

What is the temperature on the surface of the planet?

What is the temperature change for each kilometer we go up from the surface?