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locnguyenhuy03092008
2 năm trước
Cho hàm số bậc nhất y = mx + 3 (1) với m ≠ 0 a, tìm điều kiện của m để hàm số đồng biến ,nghịch biến trên R. b, vẽ đồ thị của hàm số với m = 1. c, tìm m để đồ thị hàm số (1) cắt đồ thị hàm số y = 2x + m - 3. d, tìm m để đồ thị hàm số (1) song song với đồ thị hàm số y = 2x + m
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