The more plot point the better but you must have at least three points, a labeled X-axis and Y-axis, and a table for the data to be organized into.
The answer to your question:
81/10, 8.1, and 8 1/10
If we join the points we are gonna end up with a triangle, from there by finding the centroid of the triangle we will get a point which is equidistant from all the three points given in the diagram.
Formula for Centroid:
Answer: 46
Step-by-step explanation:
10 (3 +1) + 6
30 + 10 + 6
46