DF has midpoint E(1, -3). if ID(0, 2), what are the coordinates of F?

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DF has midpoint E(1, -3). if ID(0, 2), what are the coordinates of F?

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Ngọc Khuê 3 years 2021-08-18T15:53:50+00:00 1 Answers 10 views 0

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  1. taiduc
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    2021-08-18T15:54:51+00:00
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    Answer:

    F is at (2, -8)

    Step-by-step explanation:

    use the midpoint formula:  (sum of x-values/2, sum of y-values/2)

    let (x,y) = coordinate of pt F

    (0+x/2) = 1;  x = 2

    (2+y/2) = -3;   2 + y = -6;   y = -8

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