angela09277 angela09277

24-04-2021
Mathematics

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The midpoint of AB is M(1,-2). If the coordinates of A are (-3, -8), what are the coordinates of B?

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sqdancefan sqdancefan

24-04-2021

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Answer:

B(5, 4)

Step-by-step explanation:

The midpoint formula is ...

M = (A +B)/2

Solving for B gives ...

B = 2M -A

B = 2(1, -2) -(-3, -8) = (2+3, -4+8) = (5, 4)

The coordinates of B are (5, 4).

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