When the coordinates (1, 1), (2, 3), (5, 3), and (4, 1) are joined, which shape is formed? a. parallelogram b. rectangle c. rhombus d. square and if you can explain how you did it because i'm about to take a test on it

The answer is A. Parallelogram

This is because it's length 5 - 2 = 3, width 3 - 1 = 2. However, it isn't a rectangle due to its slanted sides.

Hope this helps. - M

If you plot these points onto a coordinate plane, the resulting shape is a parallelogram because it has two pairs of parallel sides.  I don't think it's a rhombus because all of its sides don't appear to be the same length.