Since line AB passes through points A(1985,92) and B(1995,97), its slope is1995−198597−92​=21​​=105​ Let y be the population in the year 2010 .Then, according to the given graph, line AB must pass through point C(2010,y). Therefore, Slope of AB= Slope of BC21​=2010−1995y−97​21​=15y−97​215​=y−97y=7.5+97y=104.5​ Thus, the slope of line AB is 21​, while in the year 2010, the population will be 104.5 crores.