Answer to Question #74727 in Algebra for john

Question

Scientists are studying the temperature on a distant planet. They find that the surface temperature at one location is 20 Celsius. They also find that the temperature decreases by 3 Celsius for each kilometer you go up from the surface.
Let represent the temperature (in Celsius), and let be the height above the surface (in kilometers). Write an equation relating to , and then graph your equation using the axes below.