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Vesna [10]
4 years ago
11

I need help with this question.

Mathematics
1 answer:
Marina CMI [18]4 years ago
5 0
The region describes a rectangle. F(x,y) is optimized at the intersecting points around the rectangle.
You can try plugging in (-3,-5) , (-3,4), (4,4) , (4,-5) and see which one gives you the largest value.

The max value of f(x,y) is at point (4,-5)
---> 4(4) - 7(-5) = 16 + 35 = 51
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Hi again............. I am glad to help you again.

6x + 35 + 9x = 15x(x+4) -25
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Now, we gonna put all the common terms together
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I hope that's help ! 

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