Question

how do you find the domain and range for p(t)=2800+1500 when t=0

Answer 1

p(t) does not appear to be a function of time.

Answer 2

I didnt type the whole question....... its says: find the relevent domain and range for the following function: the function p(t)=2800+1500t computes the population of a city from the years 1908 to 2008 with t=0 representing 1980

Answer 3

If t= 0 represents 1980, what does t= 28 represent?

Answer 4

?

Answer 5

Let me know...

Answer 6

idk what you are aking. im so confused

Answer 7

If t= 0 represents 1980, then t= 1 would represent 1981 etc so what does t= 28 represent?

Answer 8

oh got ya! it is 2008..

Answer 9

So u are not allowed to enter any t which is outside 1980 to 2008 ie from t= 0 to t= 28, that is your domain.

Your range is all the numbers that are produced by entering all these t's.

So when t is 0, p(t=0) is 2800+1500*0 = 2800 and when t is 28

p(t=28) =2800+1500*28 = 44,800.

So your range is from 2800 to 44800.

Answer 10

omg thank you so much. that helped a ton!

Answer 11

ur welcome.

Answer 12

the range was wrong.... instead of 44800 is is 70000....why?

Answer 13

I don't know, let me look again...

Answer 14

70000 is wrong.

Answer 15

k thanks

Answer 16

The equation is 2800+1500t, right?

Answer 17

hmm... well thats why my thing says... its for college algebra on my math lab

Answer 18

And the maximum value for t is 28 so

2800 + 1500*28 = 44800.

Answer 19

I notice your question says "the years 1908 to 2008 with t=0 representing 1980

Is 1908 a typo

Answer 20

Must be or u would have negative population.

Answer 21

yes

Answer 22

To be 70000 = 2800 + 1500t -> t= 44.8 which is obviously wrong.

Answer 23

44800 is right.

Answer 24

Srictly, from 2800 to 44800.

Answer 25

Did it say the domain was right?

Answer 26

yeah.... well thanks anyways

Answer 27

You should complain....:-)

Answer 28

i did same prob and diff num and got it right