Module 6 - Writing Equations from verbal descriptions

You are given a $30 iTunes gift card for your birthday. Each song on iTunes costs $2.

• y = 30 - 2x

• y = 30x - 2

• y = 2x + 30

• y = 2x - 30

Leasing a car costs $450 per month! There is no security deposit required.

• y = 450

• y = 450x

• y = 450x + 1

The electricity and gas bill is at a fixed rate for a 3-bedroom house. The bill is $125 per month.

• y = 125x

• y = 125x + 3

• y = 3x + 125

An apartment requires a $350 security deposit (flat fee) and 850 per month.

• y = 850x - 350

• y = 350x - 850

• y = 350x + 850

• y = 350 + 850x

A phone at Verizon Wireless costs $200 plus $45 per month.

• y = 200 + 45x

• y = 45x - 200

• y = 200x + 45

• y = 200 - 45x

Renting a U-Haul to move from Orland Park to Tinley Park costs $60 for the day plus $2 per mile.

• y = 2 + 60x

• y = 60 - 2x

• y = 2x + 60

• y = 62x

The water from a bathtub start at 85 gallons and drains at a rate of 9 gallons per minute.

• y = 85 + 9x

• y = 85 - 9x

• y = 9 + 85x

• y = 85x - 9

you received $1250 in graduation money, but you're spending it at a rate of $15 every day.

• y = 1250 + 15x

• y = -15x + 1250

• y = 1250x - 15

• y = 15 - 1250x

A skydiver rides in a plane up to 7,000 feet, then jumps out and free falls at a rate of 55 feet per second.

• y = 7000 - 55x

• y = 7000 + 55x

• y = 55x - 7000

• y = 55 - 7000x

The temperature started out at 45 degrees Fahrenheit, but overnight it fell at a rate of 3 degrees F per hour until it reached 0 degrees F.

• y = -3x + 0

• y = 45 + 3x

• y = 45 - 3x

• y = 45x - 3