Linear Equation Models 2

The local service center advertises that it charges a flat fee of $50 plus $8 per mile to tow a vehicle. Write an equation that represents the total cost (y) of a service for x miles of towing.

• y = 50 - 8x

• y = 50x + 8x

• y = 50x + 8

• y = 8x + 50

Tags

CCSS.6.EE.C.9

Which of the following situations could be descried by the equation y= 120 - 25x

• There are 120 people in the football stadium, and 25 more are entering each hour.

• A plumber charges $25 for a house call and $120 per hour.

• A teacher has 120 students. Her third period has 25 students

• There are 120 gallons of water in a tank. It releases water at a rate of 25 gallons per minute

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Norb is a waiter in a diner. He earns $4 per hour plus an average of about $95 in tips. Which equation can be used to determine his salary, y, if he works x hours?

• y = 4x + 95

• y = 4 + 95

• y = 95 - 4x

• y = 95x + 4

Tags

CCSS.6.EE.C.9

Lisa went to the mall to do her back-to-school shopping. She knew that she would need to spend $78 on the school supplies required. If she also wants to buy some shirts that cost $28 each, what model can be used to represent Lisa's total spending?

• y = 78 - 28x

• y = 78x + 28x

• y = 28x + 78

• y = 28 + 78

Tags

CCSS.6.EE.C.9

A plant is 5cm tall and growing at a rate of 3cm a month.

• y = 5 + 3
• y = 5x + 3
• y = 3x + 5
• y = 3x + 5x

Tags

CCSS.6.EE.C.9

Bob has $150 in his savings account and saves $40 per month.

• y = 150 + 40
• y = 40x + 150
• y = 150x + 40

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

The amusement park charges $20 to get in plus $1.50 per ride. Which linear equation below represents this relationship.

• y=1.5+20x

• y=1.5x + 20

• y = 20x + 1.5

• y= 21.5x

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

You are laying bricks for a patio. Every row has 20 bricks in it. Write a function that represents the number of bricks (y) you lay in x rows.

• y= x+20

• y=20

• y=20x

• 20 = x

Tags

CCSS.HSF-BF.A.1A

The drive from Berlin to Niagara falls is 427 miles. If you can drive 65 miles every hour, write an equation to model the situation where y is the distance left, and x is the number of hours driven.

• y = 427 + 65x

• y = 427 - 65x

• y = 427x + 65

• y = 427x - 65

Tom is investing some of his money in a Savings account. If this account pays $12 per month and he starts with $530 in the account, what equation best represents the situation if y is the value of the account, and x is the number of months.

• y = 530x + 12

• y = 12 + 530

• y = 530 + 12x

• y = 530 + 12 + x

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2