Question

What is the 4th coordinate for (3,6),(-2,4) and (-1,2) to become a parallelogram?

Answer 1

`G(-5, -2)` and `H(0, 0)`

Explanation:

I suggest graphing to solve this one.

Since two of the points are given, all you have to do is find their opposites to the middle (`D`).

Example:
`F(-2, 4)` moves 2 up and 1 left from the middle, so to find the other vertex, do the opposite to the middle (2 down and 1 right). You end up with `(0,0)`, which is point `H`.