Introduction to Writing Linear Equations

Organize the words that represents the different parts of linear word problems

Groups:

(a) Constant Term

,

(b) Variable Term

• fixed

• starting

• one time

• daily

• weekly

• for every

• per

• monthly

• just

• admission

• fee

• up to

• annually

• for each

• base fee

The amusement park charges a $20 admission fee plus $1.50 per ride. Which linear equation below represents this relationship?

• y = 1.5 + 20x

• y = 20 + 1.5x

• y = 20x + 1.5

• y= 21.5x

The amusement park charges a $20 admission fee plus $1.50 per ride. What is the constant term?

• y

• 20

• 1.50x

• 21.5x

A holiday meal costs $12.50 a person plus a delivery fee of $30. Which equation represents the amount a holiday meal costs, y , including delivery, for x people?

• y = 12.5x + 30

• y = 12.5 + 30

• y = 12.5 + 30x

• 1.5

• 200

• 0

• 20

Bob starts with $150 in his savings account and saves $40 per month.  Which equation represents the amount Bob has in his account after x months?

• y = 150 + 40
• y = 150 + 40x

• y = 150x + 40

Easy Car Rental charges $8.50 an hour plus a rental fee of $25.50. Which equation represents the total charges for x hours?

• y = 8.5 + 25.5
• y = 25.5 + 8.5x
• y = 25.5x + 8.5

Sonya has $40 in her lunch account and pays $2 each day to eat lunch. Which equation can be used to find the amount of money Sonya has left after x days?

• y = 40 - 2x

• y = 40 + 2x

• y = 2 + 40x

• y = 2 - 40x

A man is climbing down from 100 feet high descending 30 feet per minute.

• y = - 30x + 100

• y = 100 + 30x

• y = 100x + 30

• y = 100x - 30

The Roaming Cell Phone Company charges $15.00 per month plus $0.20 per minute of airtime usage.  If Juanita uses x minutes of airtime, what is an equation that can be used to determine her monthly cell phone bill c(x)?

• C(x) = 0.20x + 15

• C(x) =15 (0.20x)

• C(x) = 15 + x + 0.20

• C(x) = 0.20 + 15x