# 3. 그래프 그리기 plt.figure(figsize=(12, 6)) plt.grid(True, color='gray', linestyle='--', alpha=0.3) plt.axhline(y=1, color='gold', linestyle='--', alpha=0.7) # y=1 기준선 # 색상별 곡선 그리기 plt.plot(x, red_func(x), color='red', linewidth=2, label='Red (f₁)') plt.plot(x, green_func(x), color='green', linewidth=2, label='Green (f₂)') plt.plot(x, gray_func(x), color='gray', linewidth=2, label='Gray (f₃)') plt.plot(x, cyan_func(x), color='cyan', linewidth=2, label='Cyan (f₄)') plt.plot(x, purple_func(x), color='purple', linewidth=2, label='Purple (f₅)') plt.plot(x, yellow_func(x), color='yellow', linewidth=2, label='Yellow (f₆)')
