http://www.weekofgeek.com/video-game-rental-store-5/
A Video Game Rental Store

write a linear equation in slope-intercept form to model each situation?
1. A video game store charges $10 for a rental card plus $2 per rental
2. A Norfolk pine is 18 inches tall and grows at a rate of 1.5 feet per year.
3. A Cairn terrier weighs 30 pounds and is on a special diet to lose 2 pounds per month.
4. An airplane at an altitude of 3000 feet descends at a rate of 500 feet per mile.
Write a linear equation in slope-intercept form to model each situation?
1. A video game store charges $10 for a rental card plus $2 per rental
y = 2x + 10
2. A Norfolk pine is 18 inches tall and grows at a rate of 1.5 feet per year.
y = 1.5x + 18
3. A Cairn terrier weighs 30 pounds and is on a special diet to lose 2 pounds per month.
y = –2x + 30
4. An airplane at an altitude of 3000 feet descends at a rate of 500 feet per mile.
y = –500x + 3000
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