2. 外语
  3. In the coordinate system below, find the following. (a)Coordinates of point Q (b)Lengths of PQ, QR, and PR (c)Perimeter of △PQR

In the coordinate system below, find the following. (a)Coordinates of point Q (b)Lengths of PQ, QR, and PR (c)Perimeter of △PQR

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问题 In the coordinate system below, find the following.
(a)Coordinates of point Q
(b)Lengths of PQ, QR, and PR
(c)Perimeter of △PQR
(d)Area of △PQR
(e)Slope, y-intercept, and equation of the line passing through points P and R
选项
答案(a)(-2,0) (b)PQ = 6, QR = 7, PR=[*] (c)13 +[*] (d)21 (e)Slope:[*], or 7y + 6x = 30
解析
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