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Mathematics 15 Online
OpenStudy (anonymous):

I need math help

OpenStudy (anonymous):

You and some friends have started your own company. After the first few months, the profits are rolling in. It is time to start thinking about putting your money to work for you. You decide that investing $5,000 into some Certificates of Deposit (CDs) would be a beneficial move. With a CD, you lend your money to a third party, and after a set time, your money is paid back with interest. Before you start investing the company's money this way, you need to pitch it to your friends. For this project, you can develop a written report, a slideshow, a video, or any other platform as long as it fully addresses the criteria listed below. Research the highest interest rate (APY—annual percent yield) for 2-year and 5-year CDs. Document the company's name, interest rate, and minimum investment. The minimum investment must be less than or equal to $5,000. Create the functions that represent the 2-year and 5-year CDs with your $5,000 investment. Use these functions to determine the amount you will be paid when the CD matures (the length of time for the specific CD). Show your work. An investor comes to your office. He says that if you give him the $5,000, he will add on an additional $50 each year to what he owes you. Create the function for this investor's plan. Create a table showing the value of the two CDs and the investor's plan for 5 years. Year 1 Year 2 Year 3 Year 4 Year 5 2-year CD 5-year CD Investor Explain to your friends how to prove that the investor's plan is a linear function and the CDs are exponential functions. Use complete sentences. Find the average rate of change for the investor's plan and the 5-year CD between years 2 and 3, and between years 3 and 5. Explain what this shows in complete sentences. One of your friends suggests another 5-year option that gives interest based on the function k(x) = 5000(1.02)x. Explain what the 1.02 represents in terms of the CD and if it is a better plan than the 5-year CD you found. Use complete sentences. Make a final recommendation on what plan you and your friends should follow. Consider that you cannot collect your money from a CD until it has fully matured. Your recommendation should be at least three sentences long.

OpenStudy (igreen):

Have you done anything yet..?

OpenStudy (igreen):

Did you research the highest interest rate yet?

OpenStudy (igreen):

It says the highest rate for a 2 year CD is 1.27%, and 5 year CD is 2.30%

OpenStudy (anonymous):

Hey I am very confused with this project

OpenStudy (igreen):

2 year CD 1.27% Company: Nationwide Minimum Investment: $500 5 year CD 2.30% Company: Optimizer Plus Minimum Investment $25,000

OpenStudy (igreen):

Oh wait it says: Research the highest interest rate (APY—annual percent yield) for 2-year and 5-year CDs. Document the company's name, interest rate, and minimum investment. The minimum investment must be LESS THAN OR EQUAL TO $5,000.

OpenStudy (igreen):

So you can't have the first one because the minimum investment is $500, not $5,000.

OpenStudy (igreen):

2 year CD 1.20% Company: Optimizer Plus Minimum Investment: $50,000 5 year CD 2.30% Company: Optimizer Plus Minimum Investment $25,000

OpenStudy (igreen):

Okay, I found a different one.

OpenStudy (anonymous):

one sec

OpenStudy (anonymous):

should I make a powerpoint like it said?

OpenStudy (anonymous):

?

OpenStudy (igreen):

Um, probably.

OpenStudy (igreen):

I did this assignment before..I did it in a word document..so you can do that too.

OpenStudy (anonymous):

ok I set everything up

OpenStudy (anonymous):

i just need help now for work

OpenStudy (anonymous):

what would be the first company?

OpenStudy (igreen):

Create the functions that represent the 2-year and 5-year CDs with your $5,000 investment. Use these functions to determine the amount you will be paid when the CD matures (the length of time for the specific CD). Show your work. 2-year CD: \(f(x) = 50,000(1.2)x\) 5-year CD: \(f(x) = 25,000(2.3)x\)

OpenStudy (anonymous):

one sec

OpenStudy (anonymous):

Shouldn't the first company be less then 5000 it says

OpenStudy (igreen):

An investor comes to your office. He says that if you give him the $5,000, he will add on an additional $50 each year to what he owes you. Create the function for this investor's plan. Function: \(f(x) = 5,000 + 50x\)

OpenStudy (igreen):

Where does it say that? All I see is it says that the minimum deposits have to be 5,000 or more.

OpenStudy (igreen):

Oh wait..it says LESS THAN OR EQUAL TO, my bad!!

OpenStudy (igreen):

We have to start all over..xD sorry.

OpenStudy (anonymous):

The minimum investment must be less than or equal to $5,000.

OpenStudy (igreen):

Okay. 2-year CD: Rate: 1.26% Company: Nationwide Minimum Deposit: $500 5-year CD: Rate: 2.23% Company: Nationwide Minimum Deposit $500

OpenStudy (anonymous):

one sec

OpenStudy (igreen):

An investor comes to your office. He says that if you give him the $5,000, he will add on an additional $50 each year to what he owes you. Create the function for this investor's plan. Function: \(f(x)=5,000+50x\)

OpenStudy (anonymous):

One second trying to add everything

OpenStudy (anonymous):

Ok I am on this part. Create the functions that represent the 2-year and 5-year CDs with your $5,000 investment. Use these functions to determine the amount you will be paid when the CD matures (the length of time for the specific CD). Show your work.

OpenStudy (igreen):

I already gave you the functions.

OpenStudy (igreen):

Sorry those two functions I gave you are supposed to have an EXPONENT of x.

OpenStudy (anonymous):

ok one sec

OpenStudy (anonymous):

ok so what are they then? confused

OpenStudy (igreen):

Create the functions that represent the 2-year and 5-year CDs with your $5,000 investment. Use these functions to determine the amount you will be paid when the CD matures (the length of time for the specific CD). Show your work. 2-year CD: \(f(x)=500(1.26)^x\) Plug in 2 years: \(f(x)=500(1.26)^2\) \(f(x)=500(1.5876)\) \(f(x)=793.8\) 5-year CD: \(f(x)=500(2.23)^x\) Plug in 5 years: \(f(x)=500(2.23)^5\) \(f(x)=500(55.15)\) \(f(x)=500(55.15)\) \(f(x) = 27,575\)

OpenStudy (anonymous):

you sure?

OpenStudy (igreen):

Yep.

OpenStudy (anonymous):

do i put all that work on page?

OpenStudy (igreen):

Okay, I already gave you the investors plan function..now I just need to fill out the table.

OpenStudy (igreen):

Yes, you have to show your work..right?

OpenStudy (anonymous):

yep one second

OpenStudy (anonymous):

ok I add both of those

OpenStudy (anonymous):

?what about the investor

OpenStudy (igreen):

Create a table showing the value of the two CDs and the investor's plan for 5 years. Just plug in 1, 2, 3, 4, and 5 in for x in all 3 of these equations. Then fill in the table. \(\begin{array}{|l|c|r|c|l|} \hline &Year~1&Year~2&Year~3&Year~4&Year~5\\ \hline 2-year~CD&$630&$793.80&$1000.19&$1260.24&$1597.90\\ \hline 5-year~CD&$1115&$2486.45&$5544.78&$12364.88&$27573.65\\ \hline Investor&$5000&$5050&$5100&$5150&$5200& \hline \end{array}\) This is your table.

OpenStudy (anonymous):

and for the question before that with the inverstor?

OpenStudy (igreen):

The investors function is \(f(x) = 5000 + 50x\). I already told you that..

OpenStudy (anonymous):

sorry I am still waking up haha and one sec

OpenStudy (igreen):

Okay..lol.

OpenStudy (igreen):

Explain to your friends how to prove that the investor's plan is a linear function and the CDs are exponential functions. Use complete sentences. The investor's plan is linear because you keep adding the same value to what you have.(50). The CDs are exponential functions because you have to put in a different exponential value everytime to get a new value.

OpenStudy (anonymous):

ok one second trying to do graph

OpenStudy (igreen):

Find the average rate of change for the investor's plan and the 5-year CD between years 2 and 3, and between years 3 and 5. Explain what this shows in complete sentences. Years 2 and 3 for the investor plan is: (2, 5050) and (3, 5100) Plug them in the slope formula: \(m = \dfrac{y_2-y_1}{x_2-x_1}\) \(m = \dfrac{5100-5050}{3-2}\) \(m = \dfrac{50}{1}\) \(m = 50\) Average rate of change between years 2 and 3 for the investor plan is 50. Years 2 and 3 for the 5-year CD plan is: (2, 2486.45) and (3, 5544.78) Plug them in the slope formula: \(m = \dfrac{y_2-y_1}{x_2-x_1}\) \(m = \dfrac{5544.78-2486.45}{3-2}\) \(m = \dfrac{3058.33}{1}\) \(m = 3058.33\) So the average rate of change between years 2 and 3 for the 5-year CD plan is 3058.33.

OpenStudy (igreen):

Years 3 and 5 for the investor plan is (3, 5100) and (5, 5200) Plug them in the slope formula: \(m = \dfrac{y_2-y_1}{x_2-x_1}\) \(m = \dfrac{5200-5100}{5-3}\) \(m = \dfrac{100}{2}\) \(m = 50\) So the average rate of change between years 3 and 5 for the investor plan is 50. Years 3 and 5 for the 5-year CD plan is (3, 5544.78) and (5, 27573.65) Plug them in the slope formula: \(m = \dfrac{y_2-y_1}{x_2-x_1}\) \(m = \dfrac{27573.65-5544.78}{5-3}\) \(m = \dfrac{22028.87}{2}\) \(m = 11014.435\) So the average rate of change between years 3 and 5 for the 5-year CD plan is 11014.435.

OpenStudy (igreen):

Oh and another reason for: Explain to your friends how to prove that the investor's plan is a linear function and the CDs are exponential functions. Use complete sentences. The investor plan has a constant slope of 50, while the CD plans do not have constant slopes.

OpenStudy (igreen):

One of your friends suggests another 5-year option that gives interest based on the function k(x) = 5000(1.02)x. Explain what the 1.02 represents in terms of the CD and if it is a better plan than the 5-year CD you found. Use complete sentences. The 1.02 represents the rate. The rate in our 5-year CD plan is 2.23, which is much larger than 1.02. Therefore, our 5-year CD plan is better than this one.

OpenStudy (anonymous):

I really apperciate the help

OpenStudy (igreen):

Make a final recommendation on what plan you and your friends should follow. Consider that you cannot collect your money from a CD until it has fully matured. Your recommendation should be at least three sentences long. I think the 5-year plan is, because it grows so much after 5 years. There is a downside though, because you have to wait the 5-years before you can collect ANY money. Still, I think it's worth the wait for 5 years, your money will grow so much.

OpenStudy (igreen):

That's all the questions..

OpenStudy (anonymous):

Thank you so much green wish i could give more medals

OpenStudy (igreen):

Lol, it's fine.

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