GR: Y1=0.5X^4–4X^2+8 en Y2=Y1(X)–Y1(X–1); tabel met stapgrootte $\mathrm{0,5}$ vanaf $x=-3$.

$\langle 0,1\rangle$

The sign of the increments alternates between plus and minus three times.

At about 3 p.m. (15h).

No, you cannot determine the number of visitors precisely at any given time, because measurements were only made every hour.

Tabel maken van $V$

It is a decelerating decrease. The values in the diagram of increments get smaller.

The values of the increments (decreases) are approaching 0. De graph of $N$ has a horizontal asymptote.