Hello students, today we will be reviewing transformations. We will focus more on enlargements. Enjoy!
Translations is when you TRANSLATE or MOVE a shape. Take the above question.
The bottom number indicates the number of squares to move up (negative numbers indicate squares to move down.
Remember, top numbers indicate the x axis, while bottom numbers indicate the y axis.
The numbers in brackets/parentheses are called VECTORS. The top number indicates the number of squares to move right (negative numbers move left).
First, lets do translations.
Next, rotate the tracing paper by the angle give. Remember to check whether of not it is clockwise or anti-clockwise. The new shape is your answer.
Count the same distance from the origin to the new square using the new line. Do the same to the other vertices (draw 2 lines for each one). Double check each vertex by matching the length of each edge.
Rotations is when you ROTATE a shape about an origin and by a certain degree.
You can also use tracing paper, which is faster. Trace the shape and draw a line to the origin.
Now, lets do rotations.
To do that, first find the centre of origin on the grid. Next draw a straight line from the origin to the first vertex. Count the distance from the origin to the first vertex. Measure the angle of the rotation, then draw a line passing through the origin with the angle at the intersection being the requested angle.