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4 cards from this section. Quick, good the night before a test.
What is a transformation matrix?
Think about how we can change an object’s position or size.
Name a type of 2D transformation.
Consider the basic ways to manipulate shapes.
What type of matrix is used for 2D transformations?
The dimensions of the matrix reflect the degrees of freedom in 2D space.
True or False: Concatenation of matrices is commutative.
Consider the different results you would get if the order changes.
Given a point (2, 3) and a translation matrix [[1, 0, 3], [0, 1, 4], [0, 0, 1]], what are the new coordinates of the point after translation?
Apply the translation matrix to the point using matrix multiplication.
How would you concatenate a reflection over the x-axis with a rotation of 90 degrees? Write down both matrices and perform the concatenation.
Perform matrix multiplication in the correct order to get the combined transformation.
6 more questions in this section. Enroll free to practise them all.
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