Consider the following population and year graph: find the slope of the line AB and using it find what will be the population in the year 2010.

Explanation

Since line A B passes through point A(1985,92) and B(1995,97), its slope is `frac(97-92)(1995-1985)=frac(5)10=frac(1)2.`

Now, let y be the population in the year 2010 . Then according to the given graph line A B must pass through point C(2010, y).

therefore slope of A B= slope of B C


`Rightarrow frac(1)2=frac(y-97)(2010-1995)`



`Rightarrow frac(1)2=frac(y-97)(15)`
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