anonymous
  • anonymous
In 1980, median family income was about 17000 and in 2000 it was about 43000 a) find the slope of the line passing through the points (1980,17000) and (2000,43000) b)Interpret the slope as a rate of change. c) if this trend continues, estimate the median family income in 2007.
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
subtract the first y value from the second y value. Divide it by the first x value subtracted from the second x value.\[slope= (y _{2} - y _{1} ) / (x _{2}- x _{1})\] This is the rate of change ( in units of dollars per year)
anonymous
  • anonymous
1980-2000/1700-43000
anonymous
  • anonymous
i got 52100 for 2007 but i think i am second guessing

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
points are (as you are told) \((1980,17000), (2000,43000)\) slope is \[\frac{43000-17000}{2000-1980}\] which is a rather silly way to look at it, but it works
anonymous
  • anonymous
the sane way to look at it is that in 20 years, from 1980 to 2000 income increased by \(26000\)
anonymous
  • anonymous
per year, that is an increase of \(26000\div 20=1300\) per year
anonymous
  • anonymous
that answers this question b)Interpret the slope as a rate of change. it means income grew by $1300 per year
anonymous
  • anonymous
ok but how would you find the rate for 2007
anonymous
  • anonymous
what is the income in 2000?
anonymous
  • anonymous
43000
anonymous
  • anonymous
and if it goes up by 1300 per year, what would it be in 2007?
anonymous
  • anonymous
52100
anonymous
  • anonymous
let me check because i just asked, didn't do it
anonymous
  • anonymous
48200
anonymous
  • anonymous
you were right the first time
anonymous
  • anonymous
ok ty
anonymous
  • anonymous
\[43000+7\times 1300=52100\] btw you can tell the moron who wrote this question that growth of this kind is exponential, not linear
anonymous
  • anonymous
yw

Looking for something else?

Not the answer you are looking for? Search for more explanations.