Question 1

Remember: If you have a problem where the annual interest is compounded monthly, what do you use for the variable $n$?

Accepted Answer

$n=12$

Answer

$n=4$

Answer

$n=1$

Answer

You don't use that equation, you use the one with the $e$.

Question 2

Comprehend: What is the difference between half-life and doubling with regards to exponential functions?

Accepted Answer

Half-life is a decay, doubling is a growth.

Answer

Half-life uses $2$ for the base while doubling uses $\frac{1}{2}$.

Answer

Half-life is a growth, doubling is a decay.

Answer

They are the same.

Question 3

Apply/Predict: What type of exponential equation would you use to track Covid-19?

Accepted Answer

Exponential Growth

Answer

Exponential Decay

Answer

Compounded Continuously

Answer

Compounded Interest

Question 4

Write the equation you would use if $4000 is invested in an account that pays 2.5% compounded continuously.

Accepted Answer

$A=4000(1.025)^t$

Answer

$A=4000(1.25)^t$

Answer

$A=4000(2.5)^t$

Answer

$A=4000(.75)^t$

Question 5

A $1500 computer depreciates 3.5% per year. Find the value of the computer after 5 years.

Accepted Answer

$1,255.24

Answer

$174.04

Answer

$1,781.53

Answer

$1,786.41

Question 6

Suppose you deposit $500 into an account paying 3% annual interest compounded quarterly. Find the balance after 10 years.

Accepted Answer

$674.17

Answer

$562.75

Answer

$671.96

Answer

$674.93

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