Question

If point C is the midpoint of , what is the coordinate of point B?

(–4, 4)

(–4, 1)

(–2, 1)

(–3, 3)

Answer 1

midpoint of AB

Answer 2

Do you know the midpoint formula?

Answer 3

how much has the x-value changed from A to C?,
the change in the x-value from C to B will be the same amount

the same goes for the y-values

Answer 4

You could use that twice...once to find the x coordinate of B and again to find the y coordinate of B