Respuesta :
rotation of 180 degrees about the origin followed by a translation 1 unit up
Answer:
A sequence of transformations that maps △RST to △R′S′T′ is a rotation of 90 degrees counterclockwise about the origin followed by a translation 1 unit up.
Step-by-step explanation:
It is given that the coordinates of the vertices of △RST are R(−3, −1) , S(−1, −1) , and T(−4, −5).
The coordinates of the vertices of △R′S′T′ are R′(1, −2) , S′(1, 0) , and T′(5, −3).
If △RST rotated 90 degrees counterclockwise about the origin, then
[tex](x,y)\rightarrow (-y,x)[/tex]
The vertices after rotation are
[tex]R(-3,-1)\rightarrow R_1(1,-3)[/tex]
[tex]S(-1,-1)\rightarrow S_1(1,-1)[/tex]
[tex]T(-4,-5)\rightarrow T_1(5,-4)[/tex]
After that if the image translated 1 units up then
[tex](x,y)\rightarrow (x,y+1)[/tex]
The vertices after rotation followed by translation are
[tex]R_1(1,-3)\rightarrow R'(1,-2)[/tex]
[tex]S_1(1,-1)\rightarrow S'(1,0)[/tex]
[tex]T_1(5,-4)\rightarrow T'(5,-3)[/tex]
Therefore, a sequence of transformations that maps △RST to △R′S′T′ is a rotation of 90 degrees counterclockwise about the origin followed by a translation 1 unit up.
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