Linear Functions

Gold’s Gym charges a new member fee of $40 and from then on its only $6 a week. What does the slope represent? 

• Total cost
• Weekly membership charge
• Number of weeks
• Initial fee for repair

Tags

CCSS.HSF.LE.B.5

Car rental company A charges $50 plus $12.50 per day.  Car rental company B charges $60 plus $11 per day.  Which function represents the difference in cost between company A and company B? 

• f(x) = -10x + 1.50 
•  f(x) = 10x – 1.50
• f(x) = 1.50x + 10
•  f(x) = 1.50x - 10

Tags

CCSS.HSF-BF.A.1B

Power Pro Gym charges a $149.99 initiation fee plus $20 per month, t, for membership. Cardio Fitness charges $39.99 per month with no initiation fee.  Which function represents the difference in cost between a Power Pro membership and a Cardio Fitness membership?

• f(t) = - 19.99t – 149.99
• f(t) = - 19.99t + 149.99
• f(t) = 149.99t – 19.99
• f(t) = 149.99t + 19.99

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Laser Tag charges a new membership fee of $45.  Afterwards, every game that a member plays is only $5.  What does the slope represent? 

• New membership fee
• Cost per game
• Number of weeks a member plays
• Cost per membership

Tags

CCSS.HSF.LE.B.5

Carlos compared the slope of the function f(x) = 2x + 3 to the slope of the graph below.      
       
What is the product of the slope of f(x) and the slope of g(x)? 

• 2
• 3
• 1/2
• -2

Tags

CCSS.8.EE.B.6

The table below shows how many cookies the Cookie Monster ate in a matter of minutes. Which function represents how many cookies were eaten?

• C(m) = 5 + 2(m – 1)
• C(m) = 2m + 5
• C(m) = m + 2
• C(m) = 2m

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

The table below shows the average length of a type of bamboo after several weeks. What is the average rate of change in length of the bamboo from week 4 to week 8?

• 2.3
• 2.2
• 2.025
• 1.7

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

The table below shows the average height of a tree and the amount of years that it has been growing. What is the average rate of change in height of the tree from year 1 to year 5?

• 1
• 2
• 0.83
• 1.2

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

Carlos compared the slope of the function   f(x) = 4x + 3 to the slope of the graph below.  What is the difference when the slope of f(x) is subtracted from the slope of g(x)?

• 4
• 2
• -2
• -4

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

Josh was the given the following two functions: J(x) = 2x - 6 and K(x), the table below. Using the two functions, find the product of the y-intercept of J(x) and the y-intercept of K(x).

• -30
• 30
• -20
• 20

Tags

CCSS.HSF.LE.B.5