if point c is the midpoint of line AB, what is the coordinate of point B?

Question

anonymous · Answer

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anonymous · Answer

If point C is the midpoint of line AB , what is the coordinate of point B?

 (–4, 4)

 (–4, 1)

 (–2, 1)

 (–3, 3)

ivettef365 · Answer

use formula, x1+x2               y1+y2
                    ------     and   ------
                        2                         2

ivettef365 · Answer

so you have

5 + x
------  =  1
 2

ivettef365 · Answer

which equal to 5 + x = 2
so x = 2-5  ???

now find y

anonymous · Answer

@ivettef365 can u tell me how did u find x ?

ivettef365 · Answer

using the formula, so what did you get for x

anonymous · Answer

@ivettef365 i really dont know how to find x so can u please sow me an example of how to find x ?