Suppose y varies directly with x. Write a direct variation equation that relates x and y when y =-5 and x = 3. Then find the value of y when x = 12 PLEASE HELP 25 POINTS

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For the equations below which statement is true ? -2x=14 6x=-42

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) .