Question 1005370
Kami challenged her classmate to find the pattern in a logic puzzle. When she says 8, she means 9. When she says 16, she means 8. Find the equation of the line that passes through the two points that represent the data in the problem. Use the equation to predict what Kami means when she says -8. 
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You have 2 points that relate "says" to "means"::
(8,9) and (16,8)
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slope = (9-8)/(8-16) = -1/8
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Equation:
means = (slope)(says) + b
Solve for "b"::
9 = (-1/8)8 + b
9 = -1 + b
b = 10
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means = (-1/8)says + b
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Your Problem:
If she says -8,
means = (-1/8)*-8 + 10
means = 11
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Cheers,
Stan H.