At the West Texas Balloon Festival in El Paso, a hot air balloon started its descent from an altitude of 800 feet. After 1 minute, it is at a height of 700 feet and continues at this rate till it reaches the ground.

A. Write a linear equation to find the height, h of the balloon after m minutes.

B. What is the rate of change. What does it represent in this situation?

C. What is the y-intercept and what does it represent?

D. What is the x-intercept and what does it represent?