Question

Please help

Answer 1

Step-by-step explanation:

Hey,there!!!

Let's simply work with it,

We have,

One point is (x2,y2) and midpoint is(x,y).

Now, let's use midpoint formulae,

$(x ,\: y) = \frac{x1 + x2}{2} + \frac{y1 + y2}{2}$

Now, let's equate with their corresponding elements we get,

$x = \frac{x1 + x2}{2}$

now, 2x=x1+x2

or, x1=2x-x2

and

$y = \frac{y1 + y2}{2}$

now,

2y = y1+y2

or, y1 = 2y-y2

Therefore, the answer is (x1,y1)= { (2x-x2),(2y-y2) }

Hope it helps...

Answer 2

Answer:

B

Step-by-step explanation:

So this was a pretty difficult question to do algebraically so I just came up with an example.