## Algebra: A Combined Approach (4th Edition)

Slope is $1.25$. Approximately, there's an increase of 1.25 million households with televisions every year.
$y$ is the number of households with televisions. $x$ is the year. Slope $=\frac{\Delta y}{\Delta x}$ Slope $=\frac{112-109.5}{2007-2005}$ Slope $=\frac{2.5}{2}$ Slope $=1.25$ Approximately, there's an increase of 1.25 million households with televisions every year.