Rebecca draws two triangles on this coordinate plane.

she wants to find a sequence of transformations that will map triangle a b c onto triangle a" b" c". she starts by rotating triangle a b c ninety degrees clockwise about the origin to form triangle triangle a' b' c'.
a. what are the coordinates of point b prime under this rotation?

rebecca maps triangle a prime b prime c prime onto triangle a double prime b double prime c double prime using the transformation (x, y) maps to (x + h, y + k).
a. what are the values of h and k?

rebecca wants to find a sequence of transformations that uses only reflections to map triangle a b c onto triangle a" b" c". the first reflection that she uses is a reflection across y = -x.
a. what are the coordinates of point a''' after this reflection?

b. identify the second reflection rebecca must perform in order to map triangle a b c onto triangle a" b" c".