WILL GIVE MEDAL
The table below represents the amount of money Cathy has in her money box as a function of time
Time
(month)
x
Money
($)
y
0
400
1
320
2
240
3
160

- anonymous

- schrodinger

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- anonymous

Part A: What is the y-intercept of the function and what does this tell you about the table? (4 points)
Part B: What is the average rate of change of the function represented by the table between x = 1 to x = 3 months and what does the average rate represent? (4 points)
Part C: What is the domain of the function represented by the table if Cathy does not put any money into the box but takes out the same amount of money from

- anonymous

Time
(month)
x
Money
($)
y
0
400
1
320
2
240
3
160

- anonymous

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## More answers

- anonymous

PLEASE HELP WILL GIVE MEDALS

- anonymous

- anonymous

- anonymous

- anonymous

- anonymous

Yo mention more people
i can help
need all 3 answers?

- anonymous

yes please thank you so much :D

- anonymous

I'm sorry I'm new I'm lost

- anonymous

it's alright i just need the answers and the fastest way to get them thank you for looking tho

- anonymous

Idk how to leave

- anonymous

click a different question to leave. @DVReed96 can you help/ do you know how?

- anonymous

im working on it

- anonymous

No? I can help but Idk how on this

- anonymous

need help asap

- anonymous

this is difficult to do on a computer man

- anonymous

ik that is why i posted it XD

- anonymous

Y-intercept = 400

- anonymous

I need to find out a graphing program otherwise i cant do much

- anonymous

I believe you r supposed to be able to just use the table

- anonymous

##### 1 Attachment

- anonymous

- anonymous

- anonymous

OK...what was the question again?

- anonymous

- anonymous

I would need the table..

- anonymous

ok, nm you already attached it

- anonymous

XD

- anonymous

Are there any options? Or is this a free response question?

- anonymous

Free response :,C

- anonymous

- anonymous

ok, figured out some of it

- anonymous

first you have to find the slope

- anonymous

slope (m) = y2 - y1/x2 - x1

- anonymous

m = 2 - 1/1 - 0

- anonymous

m = 1/1
m = 1

- anonymous

- anonymous

sorry, that wasn't right
bear with me, I haven't done this kind of prob. in a while

- anonymous

So the yintercet and slope are 1?

- anonymous

y - y1 = m(x - x1)
y - 2 = m(x - 1)
y - 2 = 1(x - 1)
y - 2 = x - 1
y (-2 + 2) = x (-1 + 2)
y = x + 1
Find the y-intercept by substituting x with 0
y = 0 + 1
y = 1

- anonymous

yes

- anonymous

y=400-80x domain is {0,1,2,3}

- anonymous

gods, that took forever

- johnweldon1993

@Tman9876 y-intercept = where on the graph x = 0
So at x = 0...we have y = 400 right?

- anonymous

ok

- anonymous

I really need a direct answer not around the bush stuff just tell me and show me how u did it please (show ur work) thanks

- anonymous

- anonymous

IDK

- Elise_a18

dang this is hard :I sorry bro, my head is about to explode

- anonymous

its ok everyone keeps saying that

- anonymous

what school do you go to anyways?

- anonymous

(A) Y-Intercept = 1 (copy and paste all the work I did into the box, you don't want to get points off for not showing work)
The y intercept represents where x = 0

- anonymous

Moving on to B

- anonymous

rate of change is the same as the slope, so again your answer would be 1

- anonymous

Average rate of change is the speed at which a variable changes over a specific period of time

- anonymous

Moving on to C

- anonymous

C doesn't look complete. Would you mind posting the entire question? :)

- FibonacciChick666

@tman9876 Did you get it?

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