Question

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.
1. 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.

Answer 1

i really dont understand this....

Answer 2

@Jadeishere

Answer 3

F(x) = 15(.3)^x
would this work..?

Answer 4

2. 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.

3. 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.

4. 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.

Answer 5

i dont know if it will work you tell me

Answer 6

Hm.... it seemed like it would before..

Answer 7

so will it work?

Answer 8

No, I don't think so =(

Answer 9

@Madds96 @mathman806 @Derrickhitch @arabpride can any of you help?

Answer 10

I suck at math...I'm really sorry :( Wish I could, girly...

Answer 11

ahhhhhhhhhhhhhhhhhhh i hate algebra

Answer 12

Algebra sucks, I know, I took it in 7th grade

Answer 13

im in 9th sooooo its a bit harder ;D

Answer 14

OMG GRaphing!!!!!!!!! what a nightmare!!!! i member when i had to this.....SMH!!! if it's one thing i hate in math its graphing.....

Answer 15

Im in 9th too

Answer 16

agreed^

Answer 17

and it's the same math, I know that

Answer 18

yea

Answer 19

helpppppppppppppppppppppppppppp meeeeeeeeeeeeeeee pls

Answer 20

Here jus cuz i tdont wanna take credit for someone elses work......---> http://answers.yahoo.com/question/index?qid=20130930122140AAWQsFn

Answer 21

i just need someone to explain the concept to me tho

Answer 22

did that help????

Answer 23

not much

Answer 24

*facepalm* soorrryy i tried.....

Answer 25

thanks tho but if someone could help me with the problem that would be great

Answer 26

@SolomonZelman

Answer 27

@SolomonZelman

Answer 28

which questions you need help with? I am not good at math, but I can try.

Answer 29

all 4 lol

Answer 30

I got disconnected, sorry.

Answer 31

lets get strait that f(x) or f of anything just represents the y.
your function is basically \[y=mx+b\]

m- number of population increase in terms of people
x- number of years
b- number of people that are now present

y- the total number of people depending on m,x and b.

Answer 32

For number 2, I think you wrote your function incorrectly.

Answer 33

i didnt write number two lol the lesson did

Answer 34

I am saying that i think that you wrote the function in the lesson incorrectly.

Answer 35

i didnt write anything.... i copied that directly from the lesson
so they probably wrote it wrong

Answer 36

whatever, idk then.

Answer 37

do u know the answer tho