Ask your own question, for FREE!
Mathematics 20 Online
OpenStudy (anonymous):

Need help will give medal been suck for days PLEASE

OpenStudy (kainui):

Interesting typo, but I can't help you unless you tell us what you're having a problem with.

OpenStudy (anonymous):

It depends on what you are stuck on, but I might be able to help.

OpenStudy (anonymous):

Iris has been studying an invasive population of snails. This particular snail has no local predators, so the population grows wildly. She has observed that the population follows an exponential rate of growth for fifteen years. Create your own exponential function, f(x), which models the snail population. You will need to identify the principal population of the snails and the rate of growth each year. Explain to Iris how your function shows the principal population and the rate of growth, in complete sentences. A local snail population grows according to the function g(x) = 200(1.03)2x. Demonstrate the steps to convert g(x) into an equivalent function with only x as the exponent. Then, explain to Iris how the key features of this local snail population compares to the key features of the invasive population. Iris wants to graph the invasive snail population to show the city council. Justify what the appropriate domain and range would be for the function f(x), what the y-intercept would be, and if the function is increasing or decreasing. In five years, a garden festival plans on using the park where Iris has been studying the invasive snails. Explain to the garden festival committee how to find the average rate of change for the snail population between years 2 and 5. Describe what this average rate of change represents.

OpenStudy (anonymous):

@Lena772

OpenStudy (anonymous):

You are in FLVS Algebra 1. I know because I had to take this exact same test.

OpenStudy (anonymous):

What lesson number is it? I might be able to help.

OpenStudy (anonymous):

@JCMMusic its 4.03

OpenStudy (anonymous):

@tatyy @sbpll2014 @massiel928 @nelsonjedi @portlandschild @Embryo @melmel1234 @Bunnijjane @gamer456148 @Loser66 @Kittykitty1963 @mr_dynamite @gigi97 @Gir_lover_♥

OpenStudy (anonymous):

to add the time (15 years) you would just substitute x with 15

OpenStudy (anonymous):

0.5 means 50% growth per year. Initial is 5 snails.

OpenStudy (anonymous):

did i help

OpenStudy (anonymous):

so what would that look like as a function to answer the first question

OpenStudy (anonymous):

@mr_dynamite

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

What would that look like as a function

OpenStudy (anonymous):

it look like this f(x) = 50(1.27)^x

OpenStudy (anonymous):

i think

OpenStudy (anonymous):

What about for question 2 what do i do there

OpenStudy (anonymous):

@mr_dynamite

OpenStudy (anonymous):

Hey do you still need help?

OpenStudy (anonymous):

@karissarose?

OpenStudy (anonymous):

Hey I'm going out of the house but will help you later.

OpenStudy (anonymous):

Yes i need help so bad @JCMMusic

OpenStudy (anonymous):

Okay are you on? What you need to do for the first part is create an f(x), exponential function. In order to do this you are going to need to make up the original population of snails and the rate they grew at in a percent. I will continue to try and get on here and help you over the next few days but I will be going out of town till tuesday so.....

OpenStudy (anonymous):

@karissarose ?

OpenStudy (anonymous):

okay so for 1 it would be f(x)=140(1.12)^15x

OpenStudy (anonymous):

Well you almost got it, it would be f(x) = 140(1.12)^x

OpenStudy (anonymous):

but what about the 15 years

OpenStudy (anonymous):

Just trust me I got 100% on this assignment

OpenStudy (anonymous):

kk so what about 2

OpenStudy (anonymous):

Okay so do you know how to isolate the x to where it's the only exponent?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

1. g(x)=200(1.0609) ^x so the key features of the invasive population is that the first one has more growth it is f(x)=140(5.4736)^x. It started out with smaller starting population but it had a greater rate of growth 1.12. this is what i got

OpenStudy (anonymous):

the first one is actually growing at a slower rate but has a higher starting snail population.

OpenStudy (anonymous):

3. The function would increasing. 140 < infinity infinity>1.12. i got this for 3

OpenStudy (anonymous):

Nope you got the 140 part right but you have to plug the 15 into x to find the other part of the range. It isn't infinity. for the domain i believe this is it but I'm not sure. Domain: 0 ≤ f(x) ≤ 15

OpenStudy (anonymous):

what about the range

OpenStudy (anonymous):

I just explained the range re-read the first part

OpenStudy (anonymous):

oh kk and 4 i got Snails population increase21530 between 2 and 5 years.

OpenStudy (anonymous):

Well no, that's not the answer. To find the average rate of change you would plug 2 and 5 into the x part of the equation. Do that first and tell me whatcha get.

OpenStudy (anonymous):

Hey gtg ttyl

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!