WorksheetsExponential Functions Test
Total questions: 20
Worksheet time: 40mins
Which does y= 2(.5)x represent?
Exponential Growth
Exponential Decay
Which does y=.5(2)x represent?
Exponential Growth
Exponential Decay
Is the following function and example of decay or growth?
f(x)=2(0.85)x
Exponential Decay
Exponential Growth
Which could represent "I start with 1000 bacteria and gain 5% every minute"
B=1000(1.5)t
B=1000(1.05)t
B=1000(5)t
None of the above
Which of the following could be represented by A=200(1.1)t
I started with $200 and lost 1% per week
I started with $200 and lost 10% per week
I started with $200 and gained 1% per week
I started with $200 and gained 10% per week
Which represents "I started with $700 and lost 1% every day"
y=700(1.1)x
y=700(1.01)x
y=700(0.9)x
y=700(0.99)x
Which one represents exponential growth?
y=700(1.1)x
y=700(0.1)x
y=700(0.99)x
y=700(0.4)x
Which represents "I started with $700 and increased it by 1% every year.
y=700(1.1)x
y=700(1.01)x
y=700(0.99)x
y=700(0.9)x
Is the population of elephants increasing or decreasing?
What is the common ratio(multiplier) for the sequence:
3, 15, 75...
12
1/5
5
Samantha's hair was known to grow very rapidly. It began at a length of 6 in and grew at a rate of 14% a week.
After saving money for some time, the student uses $630 to open a savings account. The savings account earns a yearly interest rate. If no more deposits are made, the amount in the account is represented by the equation A=630(1+0.012)t , where t is in years. What does 0.012 represent?
The monthly interest rate of 1.2%, written as a decimal
The monthly interest rate of 12%, written as a decimal
The yearly interest rate of 1.2%, written as a decimal
The yearly interest rate of 12%, written as a decimal
