Please answer this question

Two rigid transformations are used to map abc to qrs. the first is a translation of vertex b to vertex r. what is the second transformation? a reflection across the line containing ab a rotation about point b a reflection across the line containing cb a rotation about point c

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.

Answer for 10 points show work you guys in advanced < 3