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".