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Just a reminder that if you have learnt the text previously in school, you're not allowed to use it as a related text. Not sure about you guys, but we did Conrad's Heart of Darkness in year 11. :)

Would you like some more help? I can explain the 'reasoning' or whatever behind it, if you wish.

If you have a point of inflection, y''=0. So differentiate to get your f'''(x), then sub in that value of x. If it's a point of inflection at (1,-2) then f''(1)=0 and f(1)=-2. Then simultaneous with those two equations.