Question

can someone help me please? I will fan and medal.

Answer 1

Three Algebra 1 students are comparing how fast their social media posts have spread. Their results are shown in the following table.

Description Amber shared her photo with 3 people. They continued to share it, so the number of shares increases every day as shown by the function. Ben shared his post with 2 friends. Each of those friends shares with 3 more every day, so the number of shares triples every day. Carter shared his post with 10 friends, who each share with only 2 people each day.
Social Media Post Shares f(x) = 3(4)x

Day

Number of Shares


0 2
1 6
2 18
Carter shared his post with 10 friends, who each share with only 2 people each day.

Answer 2

hey @phi

Answer 3

can ya'll help me please I really really need it.

Answer 4

i relly dont know how to solve this problem thats why im trying to get help

Answer 5

oh sorry for not putting the question I need help on, hold on please.

Answer 6

@ganeshie8

Answer 7

3.Graph each function using at least 3 points for each line. All graphs should be placed together on the same coordinate plane, so be sure to label each line

Answer 8

if you need me to post the ones I already did to help out I will.

Answer 9

@ganeshie8

Answer 10

@raiders88

Answer 11

can you help me?

Answer 12

nope sorry mate

Answer 13

but here

Answer 14

thank you.

Answer 15

@phi please help if you can. I will post the others that I already did to help you out.

Answer 16

@phi do you need me to post the others?

Answer 17

what is the first question?

Answer 18

1.Write an exponential function to represent the spread of Ben's social media post.
Ben, f(x)=2*(3)x.

Answer 19

I just need help on #3

Answer 20

you mean this:
Graph each function using at least 3 points for each line. All graphs should be placed together on the same coordinate plane, so be sure to label each line
?

Answer 21

yes please.

Answer 22

one of the functions is given by a table, right ?

Answer 23

I think so.

Answer 24

it is hard to read the post. what are the 3 equations for A , B and C ?
(I'm using their first initial, easier to type)

Answer 25

A, f(x)=3*(4)^x
B, f(x)=2*(3)x
C, f(x)=10*(2)^x

Answer 26

is B f(x)=2*3^x ?

Answer 27

no.

Answer 28

@phi

Answer 29

you don't mean B is f(x)= 2*3*x = 6x ?
I assume you mean
\[ f(x) = 2 \cdot 3^x \] ?

Answer 30

its not an exponential function, my teacher would have told me to correct that if it was.

Answer 31

ok, so B is f(x)= 6x

Answer 32

to plot we need points
pick x=0, 1,2
and find f(x)
if we have f(x)= 6x
what is f(0) ? f(1) ? f(2) ?

Answer 33

idk.

Answer 34

how would I make the points from this?

Answer 35

https://www.desmos.com/calculator/muzmwjjxcu

Answer 36

ok. But first,
***Ben shared his post with 2 friends. Each of those friends shares with 3 more every day, so the number of shares triples every day. ***

that says the first day 2 people have his post
the next , 2*3 = 6
the next, 6*3 = 18
if we make that into an equation , it is
\[ f(x) = 2 \cdot 3^x\]
and we start at x=0

I am saying that equation for B must be exponential

Answer 37

idk, my teacher didn't say anything about it and I don't want him coming back on more if I change it and its wrong you know?

Answer 38

what are the 3 points for each line?

Answer 39

let's do the first equation

f(x)=3*(4)^x

for x=0, 1, 2
when x is 0 you have 3* 4^0
4^0 is 1 (anything to the zero power is 1)
so we have 3*1 = 3

and one point is (0,3)

can you find the "y value" when x is 1 ?

Answer 40

you have 3*(4)^x
erase the x and write in 1 in its place
3*(4)^1
now do order of operations: exponents first. what is 4^1 ?

Answer 41

4

Answer 42

@peachpi

Answer 43

ok, so you now have 3*4 = 12
so far we have
(0,3)
(1,12)

what do you get for x=2 ?

Answer 44

9

Answer 45

you have 3*(4)^x
erase the x and write in 2 in its place

Answer 46

just do this: erase the x and write in 2 in its place
what do you have ?

Answer 47

you have 9

Answer 48

3^2=9

Answer 49

yes 3*3 is 9
but the formula for A is 3*4^x
that is different from 3^x

so far we found (0,3), (1,12), and now we want (2, ??)
to find the number we erase the x and put in 2 in
\[ 3 \cdot 4^x \]
can you erase the x and write in 2 instead ?

Answer 50

sorry wrong way 4^2=16

Answer 51

ok, but do the entire formula
3* 4^2 = what ?

Answer 52

I looked at it wrong.

Answer 53

48

Answer 54

ok, so the 3rd point is (2,48)

(0,3), (1,12), (2,48)

time to plot these. do you know how to plot (0,3) ?

Answer 55

do you use paper or a computer to plot points ?

Answer 56

computer.

Answer 57

how would I do it the easy way on computer?

Answer 58

they want you to plot at least 3 points, so you have to find 3 points for each equation
but assuming you show that work, it sounds ok to use a computer to plot the graphs.
I use Geogebra (free download... but it takes a while)
I know there are plotting tools on the web.

Answer 59

what are the rest of the plots, im not trying to cheat or anthing but I will be in sireous trouble if I don't get a passing grade on this and I need it done now. please just tell me the other parts

Answer 60

for example
https://www.plotgraphs.com/

here is what it looks like

Answer 61

@phi