Exponential Functions

A rare bird species is decreasing at a rate of 0.8% per year. There are currently about 150,000 of these birds. How many fewer birds will there be in 3 years?

• 146429

• 3571

• 188957

• 38957

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.SSE.A.1

CCSS.HSF.BF.A.1

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.2

What is the y-intercept of f(x) = 2(3)^x

• 1

• 2

• 6

• 18

The country of Benin in West Africa has a population of 9.05 million people. The population is growing at a rate of 3.1% per year. What is a for this function?

• 9.05 million

• 3.1%

• 3

• x

The country of Benin inf West Africa has a population of 9.05 million people. The population is growing at a rate of 3.1% per year. What is r for this function?

• 9.05 million

• 3

• 3.1%

• f(x)

The country of Benin inf West Africa has a population of 9.05 million people. The population is growing at a rate of 3.1% per year. What will the population be 7 years from now?

• 3988471.5

• 7.25 million

• 6156738.5

• 11.27 million

Tags

CCSS.HSA.CED.A.1

CCSS.HSF.BF.A.1

CCSS.HSF.BF.A.2

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.2

Evaluate f(x) = 2(0.5)^x when x = 5

• 0.00001

• 16

• .0625

• 1.25

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

y = 1/2(0.5)^x

Does this function model growth, decay, or neither?

• growth

• decay

• neither

What transformations have occurred to the following function?

f(x) = 2^{x + 4}

• Shifted 4 places right

• Shifted 4 places up

• Shifted 4 places left

• Shifted 4 places down

What is the asymptote for this function:

f(x) = 4(3)^x - 2

• 4

• 3

• 2

• -2

What is the y-intercept for this function:

f(x) = 4(3)^x - 2

• 2

• 12

• 10

• -2