two dogs and three ducks
dogs have four legs and ducks have two, to find the answer, you add the number to get your answer.
in this case, two dogs would make a total of 8 legs and three ducks would make a total of 6 legs. adding 8 and 6 together, you get 14.
given is a funciton
the table shows x values as 1,2,
f(x) values as 7,9,
since f(x) is linear there is a constant slope
this shows that for a unit change in x, there is a 2 increase in f(x)
by this property, we get when 6 increases to 7, 17 will change to 19
i.e. 2 will be added to 17 to get next table value.