Find the linearization of the function at the given point f(x,y)=-10x+8y-9 at (-7,4). A. L(x,y)=-70x+32y-81 B. L(x,y)=-70x+32y-9 C. L(x,y)=-7x+4y-9 D. L(x,y)=-10x+8y-9

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A: The equation of the line is: 7x+5y-4=0 The problem can be solved as follows:

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A: We solve only one problem at a time so please submit them one by one for fast and thorough answers.

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