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jahsehsgold
21.07.2019 •
Mathematics
One endpoint of a line segment is at (4, 2). the line is bisected by placing the midpoint of the line segment at (−2, −1). what are the coordinates of the other endpoint? a) (−4, −6) b)(−8, −4) c)(10, 5) d)(−8, 4)
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Ответ:
Ответ:
Step-by-step explanation:
Right triangle ABC is reflected over AC to form triangle AFC.
Triangle AFC dilated by a scale factor of two-thirds to form triangle DEC.
Reflection is a rigid transformation which preserves lengths and angles, then
Dilation is a transformation which maps the triangle into similar triangle, so
Thus,
Similar triangle have congruent corresponding angles, so
and proportional corresponding sides
Thus, correct options are: