Question

please help

Answer 1

i know that the graph is exponential, but idk what the equation should be.

Answer 2

@texaschic101

Answer 3

im not sure

Answer 4

k12?

Answer 5

connections

Answer 6

algebra 9b honors

Answer 7

@ganeshie8
@myininaya

Answer 8

@Mehek14
@Kainui
@KendrickLamar2014

Answer 9

@imqwerty

Answer 10

20 questions, this looks like a test or a quiz....

Answer 11

it is just practice work for algebra. we are only graded for showing work and participation.

Answer 12

@KendrickLamar2014

Answer 13

I have to do a test in 5 minutes, so I need to get some stuff to take it. Maybe @ganeshie8 @Directrix @rebeccaxhawaii can help you.

Answer 14

can anyone? i don't understand how to do this

Answer 15

Hold on. I'm trying to read the question.

Answer 16

@thomasbrewer98

Answer 17

These look like points on the graph.

(0,40)
(1,20)
(2,10)
(3,5)

It appears that as x goes up by 1, the corresponding y value is halved.

Answer 18

I am thinking that the equation is something similar to y = a* (1/2)^x.

Answer 19

You figured out it was exponential. So it gonna be written like \(f(x)=a(b)^{x}\)
f(0)=a(b)^0=a and f(0)=40 so a=40
f(1)=ab=40b and f(1)=20 so b=1/2
That means \(f(x)=40(\frac{1}{2})^{x}\)

Answer 20

If x = 0, then y = 40.

Try y = 40*(1/2) ^x.

Answer 21

Let's look at the graph to be sure.

Answer 22

ok

Answer 23

i medaled you @Directrix

Answer 24

This graph makes it appear that the function touches the x axis. it does not.
But, we can check those points.

Answer 25

I think it is okay. Thanks for the medal.

Answer 26

There are different ways to write the equation: y = 40*(1/2) ^x

I don't know if this question has options.

Answer 27

One way to write it is this: y = 5 * 2 ^ (3 - x)