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Felici6086
31.01.2020 •
Mathematics
What are the coordinates of point b in the diagram?
(3.25, -2.5)
(4, -5)
(1, 3)
(2.5, 0)
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Ответ:
(3(1) + x)/4 = 1.75 and (3(5) + y)/4 = 2.5
3 + x = 7 and 15 + y = 10
x = 7 - 3 and y = 10 - 15
x = 4 and y = -5
Therefore, the coordinate of B is (4, -5)
Ответ:
The co-ordinates of point B are (4, -5).
Step-by-step explanation: We are given to find the co-ordinates of point B in the diagram.
From the diagram, we note that
the co-ordinates of point A and C are (1, 5) and (1.75, 2.5) respectively.
Also, the point C divides the line segment AB internally in the ratio 1 : 3.
We know that if a point P divides a line segment joining the points (a, b) and (c, d) internally in the ratio m : n, then the co-ordinates of the point P are
Here, (a, b) = (1, 5), m : n = 1 : 3 and (c, d) = ?
Therefore, the co-ordinates of point C will be
Thus, the co-ordinates of point B are (4, -5).
Ответ:
c
Step-by-step explanation: