<span>
function f(x), when x = 0 then f(0) = 4
</span>function g(x), when x = -4 then g(-4) = 4
so f(0) = g(–4) = 4
and
function f(x), when x = 4 then f(0) = 4
function g(x), when x = -2 then g(-2) = 4
so f(4) = g(–2) = 4
answer is
d. f(0) = g(–4) and f(4) = g(–2)
8,3 and 5 would be my guess
Each time in the sequence, 20 is subtracted.
