Semester 2 Final Exam practice test

The function shown can be used to determine the amount of money, in dollars, in a savings account after m months.

f(m)=2000(1.005)^m

Is the value increasing or decreasing?

What is the rate of increase or decrease?

What is the initial value of the account?

• increasing

  0.5%

  $2,000

• decreasing

  0.5%

  $2,000

• increasing

  1.005%

  $2,000

• decreasing

  1.005%

  $2,000

Tags

CCSS.HSF-IF.C.8B

• A

• B

• C

• D

Henry jumps off a diving board into a swimming pool. His height above the water changes according to the function h(t)=-16t^2+16t+89, where t = time in seconds and h(t) = height in feet.  

According to this function, what is the maximum height that Henry reaches?

When will Henry hit the water?

• 89 feet

  16 seconds

• 93 feet

  2.9 seconds

• 89 feet

  2.9 seconds

• 93 feet

  16 seconds

The population of gnats increases yearly at a rate of 13%, if left untouched.  If the current population of gnats in an area is 600:

Write an equation for the number of gnats in an area after 4 years.

• p(x)=600(0.13)^4

• p(x)=600(1.13)^4

Tags

CCSS.HSF-LE.A.1C

Mr. Whaley’s company earned $60,000 in 2009. Then his company’s earnings decreased each year for 4 years. The earnings are shown in the table.

Write an exponential equation that best represents the table of earnings. Let x = 0 represent the year 2009.

• e(x)=x(0.95)^60000

• e(x)=60000(0.95)^x

• e(x)=60000(x)^0.95

Tags

CCSS.HSF.LE.A.2

• x = -5

  x = -11

• x = 5

  x = -11

• x = 5

  x = 11

• x = -5

  x = 11

Tags

CCSS.HSA-REI.B.4B

Tags

CCSS.HSA-REI.B.4B

The table of values below represents g(x), the population of Walkton in millions of people x years after the year 2010. 

The population of Camville in millions of people x years after the year 2010 is given by h(x)=4(1.025)^x.

Which of the statements are TRUE about the populations of Walkton and Camville?

Select TWO that apply.

• Both cities had a population of 5 million people in 2010.

• Both cities exhibit exponential population growth.

• The population of Walkton was larger than the population of Camville in 2010.

• Walton’s population experienced linear growth and Camville’s population experienced exponential growth. 

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

• Inputs: 0, 1, 2, 3, 4

  Outputs: 7, 8, 17, 34, 59

• Inputs: 0, -1, -2, -3, -4

  Outputs: 7, 8, 17, 34, 59

• Inputs: -7, -8, -17,- 34, -59

  Outputs: 0, 1, 2, 3, 4

• Inputs: 7, 8, 17, 34, 59

  Outputs: 0, 1, 2, 3, 4

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

• Maximum

  4

• Maximum

  -4

• Minimum

  4

• Minimum

  -4