Itâs a cost-benefit analysis: If it costs you 3 hours weekly to do the wash, but costs you $30 to send it out â that is $10 per hour. But if you bill more than that at your business â or stand to get a raise if you use those three hours to learn new skills, earn a degree, etc., it is worth the investment.
Coordinate Rules for Rotations. In general, we can state the following coordinate rules for (counterclockwise) rotations about the origin: For a rotation of 90o: (x, y) --> (ây, x) For a rotation of 180o: (x, y) --> (âx, ây) For a rotation of 270o: (x, y) --> (y, âx)
With a pencil or pen, mark the centre of. rotation and the corners of the shape on. the tracing paper. In this question, the centre of rotation is. the origin, point (0,0), but it could be at any. set of coordinates. Step Three. Use your pencil or pen to hold the centre. of rotation in position (it should not move) while your rotate the tracing paper.