Can someone help me with this?
B. Use model 1 to determine the cost in 2000 of what cost $10,000 in 1975.
C. Use model 2 to determine the cost in 2000 of what cost $10,000 in 1975.

- Destinyyyy

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- Destinyyyy

B. Use model 1 to determine the cost in 2000 of what cost $10,000 in 1975.

- Destinyyyy

C= 952 (25)+15,162 or C= 952 (30)+15,162

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## More answers

- Destinyyyy

C. Use model 2 to determine the cost in 2000 of what cost $10,000 in 1975.

- arindameducationusc

what is model1,2?

- Destinyyyy

The first picture has the equation for model 1 and 2.

- arindameducationusc

okay, I didn't notice that pic :D..
wait solving...

- Destinyyyy

Okay

- arindameducationusc

if you put x=25 in the first equation, you get y which is the answer

- Destinyyyy

38,287

- arindameducationusc

i guess you did that way.... that should be correct.

- arindameducationusc

and in the second equation what did you put?

- Destinyyyy

I got 38,614

- Destinyyyy

And both of them were wrong.. I have a similar problem pulled up now

- arindameducationusc

hmmm.... i will ask @phi

- arindameducationusc

is the answer 32000, just asking?

- phi

the "fine print" says x is the number of years from 1980
if we want the number for year 2000, we want to use x= 2000-1980= 20
(not sure how we got 30!)

- Destinyyyy

I think it was 32,202 but I cant see it any more.

- arindameducationusc

@phi is here...
He is awesome....... dont worry @Destinyyyy

- Destinyyyy

So I ignore 1975??? O.o

- phi

the formula we use says "x is years from 1980".
ok, then that is what we do.

- texaschic101

for the first one you sub in 20 for x

- Destinyyyy

34,202

- phi

ok

- Destinyyyy

Is that the final answer?

- phi

it depends, do they want the exact number, or do they want you to round it to the nearest thousand?

- Destinyyyy

It says round to the nearest thousand dollar as needed.

- phi

I know for part (a) you should round. (it is hard to read a graph very accurately)

- Destinyyyy

Opps sorry read the wrong one. It says round to the nearest dollar as needed

- phi

then that is the answer (without the comma, probably)

- Destinyyyy

Okay..What about C.?

- Destinyyyy

Do the same thing?

- phi

x is still 20, but use a different equation

- Destinyyyy

29,964

- texaschic101

if you go by the graph, it looks like 32,000

- Destinyyyy

Yes thats the answer for A.

- phi

I got a different number for part c

- anonymous

is your name destiny cuz my name is desteny just with an e insted of an i

- Destinyyyy

15,964

- phi

can you show your work?

- Destinyyyy

-2(20)^2 +1020 (20) +14364
-2(400)+ 2400 +14,364
15964

- phi

1020*20 is not 2400

- Destinyyyy

Yes my name is Destiny.

- anonymous

oh cool

- Destinyyyy

Opps guess I typed plus instead of multiply

- texaschic101

C = -2 (20^2) + 1020(20) + 14,364
C = -2(400) + 20,400 + 14,364
C = -800 + 20,400 + 14,364
C = -800 + 34,764
C = 33,964......I am getting this

- Destinyyyy

Yes I just got that

- Destinyyyy

So 33,964 is the final answer?

- phi

yes

- Destinyyyy

Okay. Thank you!

- texaschic101

if it does not have to be rounded...then yes

- arindameducationusc

Good job in helping her, everyone..... :D

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