Draw the contour lines (in the positive quadrant) for this function for Y = 4, Y = 5, and Y = 10. What do we call the shape of these contour lines? Where does the line 20X + 10Z = 200 intersect with the contour lineY = 50

The sketches are drawn.

Step-by-step explanation:

We use site geogebra.org to drawn contour lines for this function for

Y = 4, Y = 5, and Y = 10. We conclude that are the planes.

We use site geogebra.org to drawn the line 20X + 10Z = 200 and  line Y = 50.  We conclude that the given planes intersect at point A(10,50,0).

The first image refers to the first part of the task, while the second image refers to the second part of the task.