Acountry's population in 1990 was 134 million in 2000 it was 139 million estimate the population in 2014

To estimate the population in 2014, we need to assume that the relation is linear that is the points from 1990 to 2014 forms a straight line. It will have the equation of the form y=mx + b. For this case, b would be zero since at year 0, the population is assumed to be zero. We need to calculate the slope as follows:

m = (139 million - 134 million ) / 2000 - 1990 = 500000

The equation would be:

y = 500000x

Therefore, the population in the year 2014 would be 1007 million.