What is the square root of 248 + square root of 63

Fast phone couldn’t copy and paste so i decided to right it down

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

Is the point (0, 8) on the x-axis or y-axis? how do you know?