fred-graham_60af003c6ad5d
fred-graham_60af003c6ad5d
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1. 1/2=e^(3k); ln1/2=3k; k=ln1/2/3≈ -0.2310 y=100e^( -0.231x) 2. (-3, 200), (0, 100), (3, 50), (6, 25)... 3. ( -9, 800)