1. To graph the system of inequalities: 1. x + 2y ≤ 3 2. 3x + 4y ≥ 12 3. x ≥ 0 4. y ≥ 1 We draw a graph of the inequalities. For x + 2y ≤ 3, the line x + 2y = 3 crosses the x-axis at (3, 0) and the y-axis at (0, 1.5). - For 3x + 4y ≥ 12, the line 3x + 4y = 12 cuts the x-axis at the point (4, 0) and y-aRead more

    To graph the system of inequalities:

    1. x + 2y ≤ 3
    2. 3x + 4y ≥ 12
    3. x ≥ 0
    4. y ≥ 1

    We draw a graph of the inequalities.

    For x + 2y ≤ 3, the line x + 2y = 3 crosses the x-axis at (3, 0) and the y-axis at (0, 1.5).
    – For 3x + 4y ≥ 12, the line 3x + 4y = 12 cuts the x-axis at the point (4, 0) and y-axis at (0, 3).
    -x ≥ 0 and y ≥ 1 limits the feasible region to the first quadrant above the line y = 1.

    When we plot these constraints, we see that the feasible region is empty because the two lines do not intersect within the given constraints.

    Thus, the number of solutions is zero.

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  2. To determine the minimum value of Z = 4x + 5y, we input the coordinates for the corner points into the objective function. 1. For the point (0, 3): Z = 4(0) + 5(3) Z = 15 2. For the point (1, 1): Z = 4(1) + 5(1) Z = 9 3. For the point (3, 0): Z = 4(3) + 5(0) Z = 12 The point (1, 1) is where the miniRead more

    To determine the minimum value of Z = 4x + 5y, we input the coordinates for the corner points into the objective function.

    1. For the point (0, 3):
    Z = 4(0) + 5(3)
    Z = 15

    2. For the point (1, 1):
    Z = 4(1) + 5(1)
    Z = 9

    3. For the point (3, 0):
    Z = 4(3) + 5(0)
    Z = 12

    The point (1, 1) is where the minimum value of Z = 9 occurs.

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  3. To find the minimum value of Z = 11x + 7y, we substitute the corner points of the feasible region into the equation. For point (0, 3), Z = 11(0) + 7(3) = 21. For point (3, 2), Z = 11(3) + 7(2) = 33. For point (0, 5), Z = 11(0) + 7(5) = 35. Thus, the minimum value of Z is 21 at the point (0, 3). ClicRead more

    To find the minimum value of Z = 11x + 7y, we substitute the corner points of the feasible region into the equation.
    For point (0, 3), Z = 11(0) + 7(3) = 21.
    For point (3, 2), Z = 11(3) + 7(2) = 33.
    For point (0, 5), Z = 11(0) + 7(5) = 35.
    Thus, the minimum value of Z is 21 at the point (0, 3).

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  4. "Objective function". In linear programming, the objective function is a function that must be optimized - either maximized or minimized. The variables of the objective function are the decision variables we seek to determine to achieve an optimal solution. Click for more: https://www.tiwariacademy.Read more

    “Objective function”. In linear programming, the objective function is a function that must be optimized – either maximized or minimized. The variables of the objective function are the decision variables we seek to determine to achieve an optimal solution.

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  5. In order to see which point is not in the half-plane 2x + 3y - 12 ≤ 0, we put in the coordinates for each point in the inequality. 1. Point (1, 2) 2(1) + 3(2) - 12 = 2 + 6 - 12 = -4 ≤ 0. The point (1, 2) is in the half-plane. 2. Point (2, 1) 2(2) + 3(1) - 12 = 4 + 3 - 12 = -5 ≤ 0. Point (2, 1) liesRead more

    In order to see which point is not in the half-plane 2x + 3y – 12 ≤ 0, we put in the coordinates for each point in the inequality.

    1. Point (1, 2)
    2(1) + 3(2) – 12 = 2 + 6 – 12 = -4 ≤ 0. The point (1, 2) is in the half-plane.
    2. Point (2, 1)
    2(2) + 3(1) – 12 = 4 + 3 – 12 = -5 ≤ 0. Point (2, 1) lies in the half-plane.

    3. For point (2, 3):
    2(2) + 3(3) – 12 = 4 + 9 – 12 = 1 > 0. Point (2, 3) does NOT lie in the half-plane.

    4. For point (-3, 2):
    2(-3) + 3(2) – 12 = -6 + 6 – 12 = -12 ≤ 0. Point (-3, 2) lies in the half-plane.

    Thus, the point which does not lie in the half-plane is (2, 3).

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