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Part d, help anyone? Thanks :)

Everything is on the picture, I've done parts a,b and c, and I don't know how to do part d

\[m = \frac{ x-2 }{ x ^{2} }\]
where x is 4, so it gives me 0.125

Because \[\frac{ dy }{ dx } = m\]

\[y-0.193 = (?)*(x - ?)\]

the second derivative must equal zero to be an inflection point

@nincompoop, are you saying that the inflection point is not (4,0.193)?

http://www.math.sc.edu/~diestelr/4.2Notes.pdf

I got it!

@nickersia: Congrats! Again, I admire the neatness and precision of your work.

@nincompoop yes, I used that in part b)
Thank you @mathmale ! :)

Thanks for the medal and for becoming a fan of mine! Hope to work with you again soon.

You're welcome, me too! Good luck :)