tml09

08-03-2007 18:13:02

Ok. I have a graph that shows 100,000 people and every five years, some of them die. It goes by increments of 5 from 0-100. It slowly decreases, and then rapidly decreases. THe equation is as follows

y= -847.96x+11741.2

I need to find the real world meanings for the numbers.I have found the x as the avg. number of people dieing a year (is that correct?), but I do not know what the y-intercept would stand for. Any help?

y= -847.96x+11741.2

I need to find the real world meanings for the numbers.I have found the x as the avg. number of people dieing a year (is that correct?), but I do not know what the y-intercept would stand for. Any help?

moviemadnessman

08-03-2007 18:17:15

Well, the y-intercept should be the number of people that you start with (so 100,000). If you know how many people die per year on average, then x would be the number of years, and you would multiply that by the average.

Say the average was 42. Your equation would be y=-42x + 100,000. Then, you could plug in any number of years into X, and find how many people are still alive.

Say the average was 42. Your equation would be y=-42x + 100,000. Then, you could plug in any number of years into X, and find how many people are still alive.

jy3

08-03-2007 18:31:17

funny that u mention 42

42 is the Answer to Life, the Universe, and Everything

42 is the Answer to Life, the Universe, and Everything

moviemadnessman

08-03-2007 18:32:19

[quote761a69b123="jy3"]funny that u mention 42

42 is the Answer to Life, the Universe, and Everything[/quote761a69b123]

Maybe it was intentional ;) ... actually, it was just because that's the page I was on in one of my textbooks shrug

42 is the Answer to Life, the Universe, and Everything[/quote761a69b123]

Maybe it was intentional ;) ... actually, it was just because that's the page I was on in one of my textbooks shrug

OldManWrigley

08-03-2007 18:52:53

[quote9ec2a02ac0="jy3"]funny that u mention 42

42 is the Answer to Life, the Universe, and Everything[/quote9ec2a02ac0]

It's also the answer to level 42.......

What are you studying? Are you currently learning about risiduals, regression, LSRL, etc..?

42 is the Answer to Life, the Universe, and Everything[/quote9ec2a02ac0]

It's also the answer to level 42.......

What are you studying? Are you currently learning about risiduals, regression, LSRL, etc..?

UberVash

08-03-2007 20:51:14

Actually, it looks like a linear regression. Is that what you're studying now?

cashssw

13-03-2007 21:33:07

I hate math....