Where is the opposite of the opposite of -1.9 situated on the number line

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) .

Thelime contains the point(-3,0) and parallel x-3y=3( show all work)

Math each whole number with a rational,exponential expression