Let f (x) be the number of households, in thousands, that own a tablet x years after 2005. What does f (8) = 216.8 mean?

For this case we have the following defined variables:

x: number of years after 2005

f (x) : the number of households, in thousands, that own a tablet

We then have the following evaluated function:

f (8) = 216.8

This means that for 2013 the number of households with a tablet is 216.8, in thousands.

Answer:

for the year 2013 the number of households with tablet is 216.8, in thousands.