1:plot three points
i: with first coordinate equal to(-2.8) and join them.
ii: with second coordinate equalto(1.3)and join them.
the two lines (one vertical, one horizontal) intersect at (-2.8,1.3)
Plot three points with first coordinate equal to-2.8
To plot three points given their coordinates and join them, follow these steps:
1. Draw a Cartesian coordinate plane on a piece of graph paper or use a graphing software.
2. Locate the first point with a first coordinate of -2 and a second coordinate of 8. Plot this point on the graph by starting at the origin (0,0) and moving -2 units to the left on the x-axis and 8 units up on the y-axis. Mark this point as A (-2, 8).
3. Locate the second point with a first coordinate of 1 and a second coordinate of 3. Plot this point on the graph by starting at the origin (0,0) and moving 1 unit to the right on the x-axis and 3 units up on the y-axis. Mark this point as B (1, 3).
4. Now, join these two points A and B with a line segment. Draw a straight line connecting these two points on the graph.
5. To locate the third point, there seems to be a typo in your question. You mentioned a second coordinate of 1.3, but it seems that you intended to provide a different coordinate. Please clarify the correct coordinate of the third point, and I'll guide you through plotting it and joining it with the other points.
Remember to label each point with a letter to make it easier to refer to them.