A hot air balloon at 1120 feet descends at a rate of 80 feet per minute. Let y represent the height

[math_celebrity]

A hot air balloon at 1120 feet descends at a rate of 80 feet per minute. Let y represent the height and let x represent the number of minutes the balloon descends.

Descending means we subtract height, so we have:
y = 1120 - 80x