could any one help me?

M is the midpoint of. Find the coordinates of B given A(-2,4) and M(3,1). Show your work for credit.

Top 2 Answers

A few days ago

jsardi56

Favorite Answer

The formulas for the midpoint are:

Xm = (Xa + Xb)/2 and Ym = (Ya +Yb)/2

Solve the first for Xb and the second for Yb:

2Xm = Xa + Xb

2Xm – Xa = Xb

2Ym = Ya + Yb

2Ym – Ya = Yb

Plug in the known coordinates to find the point:

Xb = 2Xm – Xa

Xb = 2(3) – (-2)

Xb = 6 + 2

Xb = 8

Yb = 2Ym – Ya

Yb = 2(1) -4

Yb = -2

So B = (8, -2)

A few days ago

Anonymous

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