Can anyone tell me about linear programming with this question?

It's simple, in three steps: 1 Establish the coordinate system, calculate the intersection of several inequalities, and mark the points on the diagram2. Draw the line on 3

Apply the shade according to the situation. That's it! Note:

The objective function z=x+my is deformed to y=-x m+z m, and the image is made, and it moves in the plane area d formed by the triangle with a(1,3),b(5,2), c(3,1) as vertices, z m is the intercept of the straight line y, and the intercept is the maximum value z is the maximum, and the minimum value z is the smallest.

It is not parallel to which line, but the intercept is maximized or minimized in the region d, and the maximum or minimum value of z is obtained.

Here, you think of z as an intercept, when m is not equal to zero, z=x+my<=> line y=(-x+z) m, when m=0, look at the line x=z, and then plot.

Judging by your text "which line is parallel", it seems that you should know what to do next. Can you be specific, I don't understand it, I can focus on this aspect.

Draw the diagram first, make y kx, and then translate, and get the y axis from the diagram.

intercept, and then in turn find the formula for this straight line, and you will understand the deformation. This kind of question must be drawn, just think or push, it's easy to make mistakes, let's do it. I also hate this kind of question, it's annoying, and the other type of question is to draw a circle, and the idea is basically the same.

(There is a problem with this question, there is no minimum value, because as long as the straight lines that are not at the intersection point meet the requirements of countless times, m is not a fixed value, and the person who asks the question is too simple, you can not look at this, I see it low)))).

The maximum point of z is (5,2) 2*5+2=12. No answer!

Make a satisfying |x|+|y|1, (1,0), (0,1), (1,0), (0,0), (0,-1).

<>You search for Hanyun reference, refer to the old exam, and participate in the Shiliang exam!

<> Wang's eyes are open, and if you don't understand, you can chase down the bucket and ask for rent.

Set the weekly production of X tons of A, the production of B Y tons, the profit of Z yuan.

From the meaning of the title. 3x+2y≤160

5x+y≤150

0≤x≤40

y 0 draws the planning extent in the coordinate system.

The objective function z=5x+2y

When x=20 and y=50, take the maximum value of 200

This should mean as if it were a reference, that is, a model for photography, so that you can take the exam.