{"id":"informator-maturalny-matematyka-2010/zad/17","paper_id":"informator-maturalny-matematyka-2010","number":"17","points":1,"ptype":"closed","subject":"matematyka","category":"informator-maturalny","year":2010,"month":null,"level":null,"text":"Zadanie 17. (1 pkt)\nLiczba\n7\nx\njest miejscem zerowym funkcji liniowej ( )\n(\n)\n7\n3\nx\na\nx\nf\ndla\nA.\n7\na\nB.\n2\na\nC.\n3\na\nD.\n1\na","answer":"B","answer_text":null,"solution":"f(-7)=0: (3-a)*(-7)+7=0, -21+7a+7=0, 7a=14, a=2. Odpowiedź: B.","image":"img/informator-maturalny-matematyka-2010/zad-17.webp","solution_image":null,"topics":null,"page_from":40,"source":"ai","answer_source":"ai","answer_text_source":null,"solution_source":"ai","text_source":"ocr","source_label":"Matematyka · Informator maturalny · 2010","subject_label":"Matematyka","category_label":"Informator maturalny","text_html":"<p>Zadanie 17. (1 pkt)<br>Liczba<br>7<br>x<br>jest miejscem zerowym funkcji liniowej ( )<br>(<br>)<br>7<br>3<br>x<br>a<br>x<br>f<br>dla<br>A.<br>7<br>a<br>B.<br>2<br>a<br>C.<br>3<br>a<br>D.<br>1<br>a</p>","solutions":[{"source":"ai","label":"AI","kind":"text","html":"<p>f(-7)=0: (3-a)*(-7)+7=0, -21+7a+7=0, 7a=14, a=2. Odpowiedź: B.</p>"}]}