Question

(FAN AND MEDAL) help please!!!
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 1

@ganeshie8 help me please!!!

Answer 2

@pinkbubbles @Vocaloid ???

Answer 3

@mathstudent55

Answer 4

@DaBest21

Answer 5

help please!!!

Answer 6

@Vocaloid ???

Answer 7

@Kash_TheSmartGuy

Answer 8

what are the functions?

Answer 9

i dont know :/

Answer 10

@Vocaloid

Answer 11

@DanJS

Answer 12

is there any other information provided in the problem?

Answer 13

wait

Answer 14

k

Answer 15

please post everything here

Answer 16

Student Amber Ben Carter
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 17

@Vocaloid

Answer 18

are you there? @Vocaloid ???

Answer 19

@Nnesha having a bit of trouble making sense of this problem, the information in the table, function, and word problem aren't really matching up

Answer 20

@Nnesha have the same problem? @Vocaloid ?

Answer 21

maybe take a screenshot?

Answer 22

ok give a sec

Answer 23

is there something you need from me?

Answer 24

please tag me in a separate question

Answer 25

you see the table @Vocaloid ???

Answer 26

alright, that makes it much more clear now, let's get started

Answer 27

we need to write functions for all three people (Amber, Ben, and Carter)

the problem already gives us Amber's function f(x) = 3(4)^x, let's remember that for later

now, the general form of an exponential function is f(x) = (starting number)(ratio)^x

let's find Ben's function. how many shares did he have on day 0?

Answer 28

ben 2(3)^x

carter 10(2)^x

Answer 29

right?

Answer 30

yes

Answer 31

so whats nexts? or thats the answer?

Answer 32

to graph them, they want you to find 3 points. They give you 3 points for Ben
You need points for the other 2

Answer 33

You answers 1 and 2
now you are doing part 3. graphing

Answer 34

*answered

Answer 35

I would use x=0 , 1 and 2
remember any number to the 0 power is 1
for amber (at x=0)
\[ 3\cdot 4^0= 3 \cdot 1 = 3\]
which means (0,3) is the first point for amber.
now do x=1 and x=2

Answer 36

i need to solve?

Answer 37

@phi

Answer 38

solve is not the word. Evaluate
which means, if you have a formula
and you "put in a number" for x, you get out a new number (the "y" value)

For amber, the formula is
f(x)= 3*4^x

I showed how to find f(0) (which means the y value when x is 0)
you replace x with 0, like this
f(0)= 3* 4^0
order of operations: do the exponent first.... 4^0 = 1 (special rule about 0, remember?)
then 3*1 which is 3
we get f(0)= 3
which means y is 3
and the (x,y) pair is (0,3)

now do that with x=1

Answer 39

Can you find the y value when x=1 for Amber?

Answer 40

y=4?

Answer 41

Let's see:
f(x)= 3*4^x
with x=1 we write
f(1) = 3* 4^1
is that 4?

Answer 42

no

Answer 43

remember order of operations
\[ 3 \cdot 4^1 \]
first do exponents. what is \(4^1\) ?

Answer 44

the "little 1" as an exponent as in 4^1 gives 4 (try it on a calculator)

Answer 45

its 4

Answer 46

@phi

Answer 47

yes, and f(1)= 3*4 = 12

Answer 48

so the points for amber are (0,3), (1,12)
now do x=2
can you do that ?

Answer 49

no, but let me try

Answer 50

write each step

Answer 51

f(x)= 3*2^x
with x=2 we write
f(1) = 3* 2^1
2^1= 2?

Answer 52

First, what equation do we use for amber?? (always good to start out with the correct one)

Answer 53

so, i did wrong?

Answer 54

@phi ???

Answer 55

you started with the wrong formula

Answer 56

please be careful. write down the formula for Amber.
then on the next line. *erase the x* and put 2 in its place.
what does the line look like after you do that?

Answer 57

look at the question. they give you the formula for Amber. Write it down here.

Answer 58

F(x)=3(4)^x?

Answer 59

@phi