Find an Upper Bound for the Magnitude |E| of the Error

question 272

Multiple Choice

Find an upper bound for the magnitude |E| of the error in the approximation f(x, y) ≈ L(x, y) at the given point over the
given region R.
- $$f ( x , y ) = 4 x + 7 y - 5 \text { at } ( 10 , - 9 ) ; R : | x - 10 | \leq 0.1 , | y + 9 | \leq 0.1$$

• A) \(| E | \leq 0.01\)
• B) \(| E | \leq 0.04\)
• C) \(| E | \leq 0\)
• D) \(| E | \leq 0.02\)

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