Question

I need help asap?

Answer 1

q??

Answer 2

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.

Answer 3

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.

f(x)= a(b)^x
f(x) = 200(.5)^15x
15 = 15 Years
200 = the amount started with
.5 = the rate of growth each year

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.

g(x) = 200(1.0609)^x

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 4

@gorv

Answer 5

I dont understand it and are the first two right?

Answer 6

@gorv

Answer 7

yeah first 2 are right

Answer 8

ok could you help me with number 3

Answer 9

as the population is increasing we can not use negative value of x

Answer 10

so x>=0 is domain

Answer 11

min value of x =0
so min output =200

Answer 12

ok

Answer 13

so i would be increasing and domain is 200?

Answer 14

yeah

Answer 15

but domain x>=0

Answer 16

ramge >=200

Answer 17

what the y-intercept would be

Answer 18

in 4th
find population after 2 year

Answer 19

and after 5 year

Answer 20

thn divide it by 3 to get average rate of change

Answer 21

How do I find that?

Answer 22

and for 3. I put increasing and domain and range of 200?

Answer 23

yeah

Answer 24

gudluck :)

Answer 25

i still dont understand 4?

Answer 26

what will be the population between 2 and 5 year

Answer 27

How do I start it out??

Answer 28

population after 5 year - populaton after 2 year= population between 5th and 2nd year

Answer 29

find the population

Answer 30

how do i find it could you atleast show me not give answer

Answer 31

use the formula dear

Answer 32

g(x) = 200(1.03)2x.

Answer 33

for 5 year put x=5
for 2 year put x=2

Answer 34

take their difference

Answer 35

oh ok can you wait a sec while i do it?

Answer 36

now rate means how each year it increased

Answer 37

so we calculated population of 3 year
so for one year we will divide by 3 to get rate

Answer 38

i dont have calculator

Answer 39

how i would tell u r right or wrong

Answer 40

just use calc n use the formula you will get right ans for sure

Answer 41

I got 824 for 2 years

Answer 42

and for 5 I got 2,060

Answer 43

@gorv

Answer 44

subtract these and divide by 3

Answer 45

ok thanks wish I could give more medals

Answer 46

this is what I put for answer Find the two number then subtract and then divide by 3 and I got 1,785 @gorv

Answer 47

are u kidding

Answer 48

what?

Answer 49

(2060-824)=1226
and 1226/3 = 1785???? really

Answer 50

i think it will come 400 something

Answer 51

2060 -824 = 1,236 and then equals 412

Answer 52

correct? @gorv

Answer 53

yeah

Answer 54

:):)

Answer 55

thanks gorv