For the function f (x) = a-5a2. (a) Evaluate the average rate of change from r = -2 to r 1 (b) What is the Equation of the line between the connecting the points (-2, f (-2)) and (1, f (1)) ?

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A: Find the derivative of the function f(x,y)=x2+xy+y2   at the point (-5,-4)in the direction in which…

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A: I have appended the formula used in the solution part of the question.

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Q: 2.) What is the equation of the line tangent to y(x) x- 2r3+6x-3 at r =-1?

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A: We can make it easier for you

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A: Topic- Vectro

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A: