Answer:
Option b is right.
Step-by-step explanation:
We are given that the coordinates of the vertices of trapezoid JKLM are J(2, −3) , K(6, −3) , L(4, −5) , and M(1, −5)
and that of J′K′L′M′ are J′(−3, 3) , K′(−3, 7) , L′(−5, 5), and M′(−5, 2) .
On comparing the coordinates we find that y coordinates of JKLM vertices have become x coordinates of J'K'L'M'.
So there was a reflection of the vertices about the line y =x.
Because of this reflection we get nw coordinates as
(−3, 2) , (−3, 6) , L′(−5, 4), and M′(−5, 1) .
Again there was a shift of 1 unit of y i.e. vertical shift of 1 unit up.
Hence new coordinates would be
J′(−3, 3) , K′(−3, 7) , L′(−5, 5), and M′(−5, 2)
Thus we find that new trapezium is congruent to original trapezium
Correct option is
Trapezoid JKLM is congruent to trapezoid J′K′L′M′ because you can map trapezoid JKLM to trapezoid J′K′L′M′ by reflecting it across the line y = x and then translating it 1 unit up, which is a sequence of rigid motions.