Get detailed and accurate answers to your questions on IDNLearn.com. Join our interactive community and get comprehensive, reliable answers to all your questions.
Answer:
[tex]{ \tt{y = - {x}^{2} - x + 6 }} \\ { \tt{ \frac{dy}{dx} = - 2x - 1}} \\ f {}^{'} (x) = - 2x - 1 \\ f {}^{'}(1) = - 2 - 1 \\ = - 3 [/tex]