Algebra Linear and Exponential Functions

Lee charges $3 for a basket and $2.50 for each pound of fruit picked at the orchard. Write an equation for the total cost of x pounds of fruit from the orchard.

• y = 3x + 2.5

• y = 2.50x + 3

• y = 2.50x 

• y = 3x + 2.50

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

What type of function best models the situation: A zombie virus has infected the population and the number of infected people triples every day.

• linear

• quadratic

• exponential growth

• exponential decay

Which situation is linear?

• A sample of bacteria doubles every hour

• The number of cars each hour on the road for a week

• The cost of a movie ticket increases by 5% every year

• The population of a town is increasing by ten people every year

Tags

CCSS.8.F.A.3

Dave owns a lawn business. He charges $10 per hour and a $25 dollar disposal fee. What is the correct equation Dave would use to find out how much to charge his customers?

• y = 25x + 10

• x = 25y + 10

• y = 10x +25

• x = 10y + 25

Tags

CCSS.6.EE.C.9

Which company shows a greater/higher rate of change?

• Water's Edge Rafts

• Ryan's Rafts

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

What is the rate of change (slope) to rent a raft from Ryan's Rafts?

• $15 per hour

• $2.25 per hour

• $17.25 per hour

• $1 per hour

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

Identify the type of function.
y = 4^x + 3

• Exponential

• Linear

• Quadratic

• Cubic

Type of function:  You have a car whose initial value was $18,000.  Its value depreciates 4% each year.

• linear

• exponential

• quadratic

• neither

Which of the following functions is linear?

• 
• 
• 
• 

Tags

CCSS.8.F.A.3

Which function has the greatest y-intercept?

• f(x)

• h(x)

• g(x)

Tags

CCSS.HSF-IF.C.7B