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The midpoint of AB is M(1, -3). If the coordinates of A are (-6, -7), what are

the coordinates of B?

User CrazyYoshi
by
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1 Answer

1 vote

Answer:

B(8, 1)

Explanation:

M is the midpoint of AB so:


x_B-x_M=x_M-x_A\qquad\quad\ \wedge\qquad y_B-y_M=y_M-y_A\\\\x_B-1=1-(-6)\qquad\quad\wedge\qquad\quad y_B-(-3)=-3-(-7)\\\\x_B=1+6+1\qquad\quad\ \wedge\qquad\quad y_B=-3+7-3\\\\x_B=8\qquad\qquad\ \wedge\qquad\qquad y_B=1

User Raechel
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