It then says I need to find I just can't find this in my book. Please help!
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Originally Posted by Bilbo94 It then says I need to find I just can't find this in my book. Please help! Treat the fraction as the following: $\displaystyle (x+3)^{-1}$ It's derivative follows the power rule... $\displaystyle (-1)(x+3)^{-1-1}$ which simplifies to: $\displaystyle -(x+3)^{-2}$ Plug and chug for $\displaystyle f'(-7)$
Thanks so much!
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