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Question

A piece of cheese is located at (12, 10) in a coordinate plane. A mouse is at (4, –2) and is running up the line y = –5x + 18. At the point (a, b), the mouse starts getting farther from the cheese rather than closer to it. The value of (a + b) is

A
6
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B
10
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C
18
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D
14
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Solution

The correct option is B 10


a = 2, b = 8
a + b = 10

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