The midpoint of AB is M(-6, -1). If the coordinates of A are (-5,3), what the coordinates of B? are

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Question

The midpoint of AB is M(-6, -1). If the coordinates of A are (-5,3), what
the coordinates of B?
are

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Mathematics Thanh Thu 3 years 2021-08-31T16:40:17+00:00 2021-08-31T16:40:17+00:00 1 Answers 13 views 0

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Captcha* Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )

Answer*

thucuc · Answer 1 · 2021-08-31T16:41:33+00:00

thucuc

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2021-08-31T16:41:33+00:00 August 31, 2021 at 4:41 pm

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Answer:

Step-by-step explanation:

M(-6, -1) being the midpoint of AB means that $x_M-x_A=x_B-x_M$

$-6-(-5)=x_B-(-6)\\\\-6+5-6=x_B\\\\x_B=-7$

and $y_M-y_A=y_B-y_M$

$-1-3=y_B-(-1)\\\\-4=y_B+1\\\\y_B=-5$