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4 cards from this section. Quick, good the night before a test.
Define a 2D transformation matrix for translation.
Consider how you would move a point by tx and ty.
What does a scaling transformation do?
Think about how enlarging or shrinking an object affects its coordinates.
What is the main purpose of transformation matrices?
Think about what transformations do to shapes.
True or False: The order of matrix multiplication does not affect the final transformation result.
Reflect on how different operations may occur based on order.
You have a point (2, 5). First, apply a scaling transformation with a factor of 2, then a translation of (3, -2). What is the resulting point?
Do the scaling first, then add the translation values to the scaled coordinates.
If a point is rotated 90 degrees around the origin, what will the new coordinates be for the point (3, 4)?
Refer to the 90-degree rotation matrix and apply it to the original point.
4 more questions in this section. Enroll free to practise them all.
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