a line segment has one end point at (a,0) and its other endpoint on the line yx. if the midpoint of this line segment is (2019,2020). what is the value of a?

a=-2

Step-by-step explanation:

If a line segment has one endpoint on the line y=x, then its coordinates are (b,b). The first endpoint of the segment is at point (a,0). We can find the coordinates of the midpoint of this segment as the average value:

Thus,

From the second equation

Substitute it into the first equation:

ik how do do this just give me a few minutes and i will give it to