Use the two-phase method to find the optimal solution to the following LP:
Min z = 3x1 + 2x2
s.t.: 3x1 + x2 ≥ 3
4x1 + 3x2 ≥ 6
x1 + 2x2 ≤ 3
x1, x2 ≥ 0
Answer: z = 4.2, x1 = 0.6, x2 = 1.2.
Solution:
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Use the two-phase method to find the optimal solution to the following LP: Min z =...
1. Use the Big M method to find the optimal solution to the following LP: Max z = 5x1 − x2 s.t.: 2x1 + x2 = 6 x1 + x2 ≤ 4 x1 + 2x2 ≤ 5 x1, x2 ≥ 0 Answer: z = 15, x1 = 3, x2 = 0.
Use the Big M method to find the optimal solution to the
following LP:
min z = -3x1 + x2
s.t. X1 - 2x2
2
-x1 + x2
3
x1, x2
0
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3. Use the two-phase simplex method to solve the following LP. Min z = x1 + 2x2 Subject to 3x1 + 4x2 < 12 2x1 - x2 2 2 X1, X2 20
Question 3: Identify which of LP problems (1)--(4) has (x1,x2) = (20,60) as its optimal solution. (1) min z = 50xı + 100X2 s.t. 7x1 + 2x2 > 28 2x1 + 12x2 > 24 X1, X2 > 0 (2) max z = 3x1 + 2x2 s.t. 2x1 + x2 < 100 X1 + x2 < 80 X1 <40 X1, X2 > 0 (3) min z = 3x1 + 5x2 s.t. 3x1 + 2x2 > 36 3x1 + 5x2 > 45...
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Use the Big M method to find the optimal solution to the following LP: max z = x1 + x2 s.t. 2x1 + x2 > 3 3x1 + x2 = 3.5 x1 + x2 = 1 X1, X2 = 0
Use the simplex algorithm to find all optimal solutions to the following LP. max z=2x1+x2 s.t. 4x1 + 2x2 ≤ 4 −2x1 + x2 ≤ 2 x1 ≥1 x1,x2 ≥0
1. Solve the following LP by the simplex method. Min z = 2x2 – Xı – X3 Subject to *1 + 2x2 + x3 = 12 2x1 + x2 – x3 = 6 -X1 + 3x2 = 9 X1, X2, X3 > 0
2. Consider the following LP: Min z = -4x1 - 5x2 + 3x3 Subject to X1 + x2 + x3 = 10 X1 X2 > 1 X1 + 3x2 + x3 = 20 X1, X2, X3 20 (a) Solve the problem by Big M method. (b) Solve the problem by two-phase method.
3. Use the simplex algorithm to find an optimal solution to the following LP: s.t. 3x1 +26 s.t.-xi + 2x2 S 0 レ
QUESTION 15 Describe the solution space for the following LP model: Maximize: 2x1 3x2 Subject to: 1: 2x1 3x2 2 18 2: 4x1 2x2 2 10 x1, x2 20 Multiple optimal solutions O Infeasible None of the above QUESTION 16 Describe the solution for the folowing LP model: Maximize: 2x1 3x2 Subject to: 1:4x1 +5x2 2 20 2: 3x1 2x2 212 x1, x2 20 A single optimal solution O Infeasible Multiple optimal solutions None of the above QUESTION 17 In...