(−0.25x − 4) − (2.5x + 5.4)

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?

Mary beth used the mapping rule to find the coordinates of a point that had been rotated 90° counterclockwise around the origin. examine the steps to determine whether she made an error. m (3, –6) is rotated 90° counterclockwise. (x, y) → (–y, x) 1. switch the x- and y-coordinates: (6, –3) 2. multiply the new x-coordinate by –1: (6(–1), –3) 3. simplify: (–6, –3) .

Measures of the angle of r, 31 s (x+4) t (3x+9)