{"id":"site-3078/zad/3303","paper_id":"site-3078","number":"3303","points":null,"ptype":"open","subject":"matematyka","category":"zbiory","year":0,"month":null,"level":"podstawowa","text":"Funkcja f jest określona wzorem f(x) = 2x-b / x-9 dla x różnego od 9. Ponadto wiemy, że f(4)=-1. Oblicz współczynnik b.","answer":null,"answer_text":null,"solution":null,"image":"img/site/3078/zad-3303.svg","solution_image":"img/site/3078/rozw-3303.svg","topics":null,"page_from":null,"source":"site","answer_source":null,"answer_text_source":null,"solution_source":null,"text_source":"site","source_label":"Matematyka · Zbiory zadań (podstawowa)","subject_label":"Matematyka","category_label":"Zbiory zadań","text_html":"<p>Funkcja f jest określona wzorem f(x) = 2x-b / x-9 dla x różnego od 9. Ponadto wiemy, że f(4)=-1. Oblicz współczynnik b.</p>","solutions":[{"source":"site","label":"matematykaszkolna.pl","kind":"image","image":"/img/site/3078/rozw-3303.svg"}]}