Intro to Exponentials

Classify
 f(x)=-3(1.75)^x-4+6

• Exponential Growth

• Exponential Decay

Tags

CCSS.HSF-IF.C.8B

What is the base in
f(x)=2(6)^x+3-8 ?

• 2

• 6

• -3

• -8

Tags

CCSS.HSF-IF.C.8B

What is the horizontal asymptote for the graph of 
f(x)=-2(3)^x+4-8 ?

• y=8

• y=-8

• x=-8

• x=-4

Tags

CCSS.HSF-IF.C.7E

The number of mosquitoes at the beginning of the summer was 4,000. The population of mosquitoes is expected to grow at a rate of 25% a month. How many mosquitoes will there be after 4 months?

• 9766

• 9006

• 9765

• 5433

Tags

CCSS.HSF.BF.A.2

Suppose a culture of bacteria begins with 5000 cells and dies by 30% each year. Write an equation that represents this situation.

• y=5000(0.7)^x

• y=30(5000)^x

• y=5000(1.3)^x

• y=5000x^x

Tags

CCSS.HSF.LE.A.2

Approximately what interest rate would be needed in order to grow and investment of $1400 to $2500 in 10 years if the interest was compound monthly?

• 5.96%

• 5.84%

• 5.81%

• 5.88%

Which of the following is an exponential function?

• y = x²

• f(x) = 3x³

• y = x³

• f(x) = 3^x

What is the base of the exponential function in the equation f(x) = 5^x?

• 5

• x

• f(x)

• None of the above

What is the y-intercept in y=4(2)^x

• (4,0)

• (0,2)

• x

• (0,4)

• (4,2)

Tags

CCSS.HSF-IF.C.7E

What is the starting amount in the problem below?

• 300

• 1.05

• t

• y