Вправи 401 - 467 » 445

445. Який коефіцієнт k функції у = к/х: 1) y = 1/5x, k = 1/5; 2) y = –1/7x, k = –1/5; 3) y = 4/9x, k = 4/9; 4) y = 5/6x, k = 5/6; 5) y = –1/0,2x = –5/x, k = –5; 6) xy = –8; y = –8/x, k = –8. 7) 2xy = 14 |: 2x y = 7/x, k = 7. 8) 4xy = –24 |: 4x y = –6/x, k = –6.