Step-by-step explanation:
Hey there!!
It's so simple.
While finding the coordinates of any point if the midpoint is there it will be much easier. You must remember the midpoint formulae.
Let's simply work with it.
Here, A (2,-1) and midpoint M(3,3) are given.
Let another coordinate be B(x,y).
By midpoint formulae,
Putting their values,
As they are equal, equating with their corresponding elements we get,
6= 2 + x
x = 6-2
Therefore, the value of a is 4.
Again,
6 = -1 + y
Therefore, the value of y is 7.
Therefore, the coordinates are B (4,7)
<em><u>Hope it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>