<prompt> Translate the following text to EnglishHii ni kwa sababu inaonyesha hali ya kihisabati inayofanana na hali ya tatizo fulani na kisha inaruhusu shughuli zote ziendelee wakati inachora grafu - utabiri - wa jinsi hali halisi itakavyokuwa.  <response>: that sets up conditions mathematically similar to the conditions in some problem and then lets all the operations proceed while it draws a graph--a prediction--of how the real conditions would turn out. 