We wish to restrict a variable X in a model to just two values, X = 25 or X = 35. Which of the following is the correct linear constraint to enforce this? O (X-25) (X-35) = 0 ○ Introduce a binary integer variable Y = {0, 1} in the model. Add the constraint: X 25Y+35 (1-Y) Introduce a binary integer variable Y = {0, 1} in the model. Add the constraint: (X-25) (X-35) = Y Use the OR function of the spreadsheet: X = OR(25,35)
We wish to restrict a variable X in a model to just two values, X = 25 or X = 35. Which of the following is the correct linear constraint to enforce this? O (X-25) (X-35) = 0 ○ Introduce a binary integer variable Y = {0, 1} in the model. Add the constraint: X 25Y+35 (1-Y) Introduce a binary integer variable Y = {0, 1} in the model. Add the constraint: (X-25) (X-35) = Y Use the OR function of the spreadsheet: X = OR(25,35)
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter2: Systems Of Linear Equations
Section2.4: Applications
Problem 16EQ
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Please answer the question in the attached image.

Transcribed Image Text:We wish to restrict a variable X in a model to just two values, X = 25 or X = 35. Which of
the following is the correct linear constraint to enforce this?
O (X-25) (X-35) = 0
○ Introduce a binary integer variable Y = {0, 1} in the model. Add the constraint:
X 25Y+35 (1-Y)
Introduce a binary integer variable Y = {0, 1} in the model. Add the constraint:
(X-25) (X-35) = Y
Use the OR function of the spreadsheet:
X = OR(25,35)
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