<PRE><B>Question 791834</B>
lets put population on the y axis and year on the x axis... and find the slope which is m

.......y2 - y1
m =--------
.......x2 - x1

these are our two points
(1950,32000) and 
(2000,149000)
.
.
  149,000 - 32,000
 -----------------
  2000 - 1950
.
.
equals
.
.
  117,000
 ---------
   50
.
.
reduce to lowest terms...
.
.
2340
----
 1
.
.
so for every year, the population increases by 2340 people.  to estimate the population for the year 2010, multiply 2340 by 10 = 23,400, add that to 149,000 to get an estimated population of 172,400 in the year 2010</PRE>