Question

(FAN AND MEDAL) help please!!!

Answer 1

Question?

Answer 2

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.Day
Number of Shares
0 2
1 6
2 18

Answer 3

1)Write an exponential function to represent the spread of Ben's social media post.

Answer 4

i really need help on this question please help!!!

Answer 5

@AaronAndyson

Answer 6

@ganeshie8 @peachpi

Answer 7

This is a geometric sequence with r=3 and \(a_0\)=2.

Or same way with an exponential function, you know the initial value of 2, and the base of the exponential function is 3.

Answer 8

\(y=a(b)^x\)

a - initial value
b - the growth rate

Answer 9

hint:
from your data, we have:
\[\Large \begin{gathered}
N = 2 \times {3^0} = 2 \to day:0 \hfill \\
N = 2 \times {3^1} = 6 \to day:1 \hfill \\
N = 2 \times {3^2} = 18 \to day:2 \hfill \\
\end{gathered} \]

Answer 10

whats the value of x in Y=a(b)

Answer 11

@SolomonZelman ???

Answer 12

the x doesn't have a particular value in this case (it is a function, like any other, all you need to do is to fill in for a and b)

Answer 13

so Y=6 exponent x

Answer 14

\(y=a(b)^x\)

a - initial value (we said this initial value was .... ?)
b - growth rate (this growht rate is... ? -what is the growht rate

Answer 15

no, don't multiply the 2 and 3

Answer 16

ok sorry im confused

Answer 17

when you plugged in for a and b (into the y=a(b)\(^x\) )

(without multiplying anything, rather, just when you plugged) what did you get?

Answer 18

y=2(3) exponent x

Answer 19

yes,

y=2(3)\(^x\)

Answer 20

And that is the answer....

Answer 21

lol thank you i thought i had to do more, can you help me with a few more questions

Answer 22

you can't multiply 2 and 3 together, because 3 is raised to exponent of x, and 2 is not.

you get a wrong result, because
2(3)\(^x\) \(\ne\) 6\(^x\)

for the following reason
2(3 • 3) \(\square \) 6 • 6
2(3 • 3 • 3) \(\square \) 6 • 6 • 6
2(3 • 3 • 3 • 3) \(\square \) 6 • 6 • 6 • 6

etc....

Answer 23

yes, I think I can.....

Answer 24

see how these two expressions are NOT equivalent?

Answer 25

oooh ok i understand now..

Answer 26

Good:)

Answer 27

If you want you can ask in a different post, or use the same post. I don't really care....

Answer 28

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

Write an exponential function to represent the spread of Carter's social media post.

Answer 29

Ok, we have the same exact thing, and a same exact function y=a(b)\(^x\) to fill out, EXCEPT that the numbers are bit different.

Answer 30

What number of friends who know the post did you start from?

Answer 31

ok let me try

Answer 32

sure, go ahead

Answer 33

y=10(2) exponent x

Answer 34

yes, very good

Answer 35

btw, jst giving you a tip, that you can write an exponent using a caret, the ^ key.

(obtained by Shift+6)

y=10(2)^x

Answer 36

^x indicates that x is the exponent. 9so that you don't have to write that x is the exponent every time verbally.

Answer 37

ok thanks,


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 38

oh, so now you have to graph the function from question 1, and the function 2.... right?

Answer 39

yes

Answer 40

ok,

Answer 41

idk, if this grid will make it easier, and if anything we can use desmos.com

Answer 42

ok, so your 1st function is
y=2(3)^x
and your second function is
y=10(2)^x

Answer 43

I will recommend to use
x=0
x=1
x=2
for the first and for the second function (use www.desmos.com/calculator because otherwise, you will have a hard time drawing it).

Answer 44

lets name your 1st function f(x), and second function g(x) (for our convience, for now)

Answer 45

f(x)=2(3)\(^x\)
g(x)=10(2)\(^x\)

you will need to tell me
f(0), f(1), f(2)
AND
g(0), g(1), g(2)

Answer 46

im confused, i really didn't understand the graphing at all

Answer 47

@SolomonZelman

Answer 48

you just need to label a couple of points (at least 3) on the first function, graph them, and connect them with a curve to get (an approximate) graph of the function.

Then, do the same thing for the second function

Answer 49

I am just advising you to use the points with x-coordinates of 0,1, and 2)