Step-By-Step Guide to Rotations

There are three types of rotations, so you need to remember three rules. We will do one example here. A rotation problem might be something like this:

Graph the image of the figure after a rotation of 90°clockwise:

 

 Step 1: Write the coordinates of the given figure.  The coordinates are: M(1,0), N(3,2), O(4,-1) P(3,-3)

Step 2: Use the rule for rotating 90 degrees clockwise. Check the bottom of Page 508 for this. (I'll wait.....)

The rule is, switch the coordinates, then change the sign of the second number.

Step 3: Write down the new coordinates.  The new coordinates are: M(0,-1), N(2,-3), O(-1,-4) P(-3,-3)

Step 4: Plot the new coordinates and draw the new figure. Like this:

You still need to know the rules for counterclockwise and 180 degrees.

Step 5: the..the..the..that's all folks. Study. 

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