Ayuda es un examen necesito el procedimiento completo

Simplify.7x + 3y - 2 + 6x + 1 + y squared 2 you! ; )

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) .

Give all possible names for the line shown. calculation tip: lines can be written with either point first.