Name the axis or quadrant in which the point (4,0) lies.

The first quadrant has both positive x, and y coordinates. The fourth quadrant has positive x coordinates but negative y coordinates. The given point is on the boundary between these quadrants where the x coordinates are positive and the y coordinate is always 0; it is called the positive x axis.

It lies in 1st quadrant.

answer: she must produce at least 9,000 windows in order to make a profit of $48,000

explanation:

48,000 - 12,000 = 36,000

36,000/4 = 9,000