A. write functions for the following transformations using function notation. choose a different letter to represent each function. for example, you can use r to represent rotations. assume that a positive rotation occurs in the counterclockwise direction. • translation of a units to the right and b units up • reflection across the y-axis • reflection across the x-axis • rotation of 90 degrees counterclockwise about the origin, point o • rotation of 180 degrees counterclockwise about the origin, point o • rotation of 270 degrees counterclockwise about the origin, point o