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.