The figure below shows quadrilateral ABCD and a line of reflection.Determine the coordinates of A', B', C' and D' using only reasoning (that is, without folding).

Question

anonymous · Answer

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anonymous · Answer

attachment

anonymous · Answer

@DanJS @melodycrazysouthern

danjs · Answer

a reflection with respect to some line , means you want to jump over that line for each point perpendicularly the same perpendicular distance

danjs · Answer

this one is pretty easy,  the line is horizontal

danjs · Answer

C will jump over to the point c'(4,2)

danjs · Answer

http://www.mathsisfun.com/geometry/reflection.html mirrored over the line

anonymous · Answer

what are the other ones
i got A,B&D wrong too

danjs · Answer

See B is 4 units away from that line, when you reflect it , the B' will be also 4 units away on the other side

danjs · Answer

so B will reflect over to give (4,0)

anonymous · Answer

would a be 5,3?

anonymous · Answer

whats A & D

danjs · Answer

|dw:1447313868836:dw|

danjs · Answer

A is 5 units from that reflection line,   must be the same on the other side,  results in the point A'(6 , -1)

danjs · Answer

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