Linear Relationships

On the first day of the month, Jane has $500 in her checking account. Each time she buys lunch, she spends $8. If Jane purchases x lunches in a month, how much money will remain in her account, in terms of x?

• 500-8x

• 500+8x

• 8-500x

• 8+500x

Which of the following descriptions matches the graph shown below?

• initial fee of $100 plus $25 per month

• initial fee of $100 plus $50 per month

• initial fee of $100 plus $75 per month

• initial fee of $25 plus $100 per month

Which equation below represents the relationship shown in the table?

• y=x+5

• y=x+6

• y=2x+5

• y=3x+2

Josefina deposited $250 into her savings account. She then saved $40 per month. Which of the following equations shows a, the amount in Josefina’s saving account after t months?

• a=250+40t

• a=250-40t

• a=40+250t

• a=40+210t

Clare owns a mobile pet grooming company. She charges $20 to come to your home plus $30 per hour to groom your pet. Which equation models the amount she charges over time?

Which points would be located on the line?

• (8,0)

• (4,1)

• (0,8)

• (0,2)

Does this graph represent a proportional or non-proportional relationship?

• Proportional

• Non-Proportional

Which table represents the same linear relationship as y=3x-2?

• 
• 
• 
• 

John says that the number y is equal to

5 more than 15 times x. Which of the following equations could be used to find the value of y?

• y=5x+15

• y=15x+5

• y=5x-15

• y=15x-5

The graph below shows the temperature of cooling water after it has been taken off a stove. What is the approximate temperature after 4 minutes?

• 70 degrees

• 75 degrees

• 80 degrees

• 85 degrees