Dilation: expansion or contraction of an image by a scale factor Translation: sliding of a rigid object from one location on a plane to another location on the plane Rotation: movement of a plane about a fixed point so that every ray on the original figure has the same angle as every corresponding ray on the image Reflection: an isometry that flips a plane about a fixed line The image of ABC is A'B'C. What transformations would result in this image? ABC is reflected over the line x = 1, then is rotated -90° around the origin. ABC is reflected over the line y = x - 1, then T: (x, y) → (x - 1, y - 1). ABC is rotated 90° around the origin, then is reflected over the y-axis. ABC is rotated -90° around the origin, then is reflected over the line y = -1.