Plot three points with first coor

dinates equal to -2.8 and join them

enough on this topic, please!

To plot three points with the first coordinate equal to -2.8, you can choose any values for the second and third coordinates. Let's plot three points with the following coordinates:

Point 1: (-2.8, 1)
Point 2: (-2.8, -2)
Point 3: (-2.8, 3)

To join these points, draw line segments between them:

Starting from Point 1 (-2.8, 1), draw a line segment to Point 2 (-2.8, -2).

Then, draw another line segment from Point 2 (-2.8, -2) to Point 3 (-2.8, 3).

You have now plotted three points with the first coordinate equal to -2.8 and joined them with line segments.