Matrix Algebra - AQA FP4

kcogman
Flashcards by kcogman, updated more than 1 year ago
kcogman
Created by kcogman over 7 years ago
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Description

Flashcards to help memorise key facts and transformation matrices from the chapter.

Resource summary

Question Answer
How do you state the order of a matrix? Rows then columns.
Under what circumstances can matrices be added and subtracted? If they have the same order.
How do you multiply two matrices? Multiply the rows by the columns.
What is the non-commutativity of matrix multiplication? AB =/= BA
What happens when you multiply a matrix by the identity matrix? The matrix stays the same.
How do you transpose a matrix? You switch the rows and the columns.
What matrix represents a rotation 90 degrees anticlockwise about O?
What matrix represents a rotation 90 degrees clockwise about O?
What matrix represents a rotation 180 degrees about O?
What matrix represents a reflection in the x-axis?
What matrix represents a reflection in the y-axis?
What matrix represents a reflection in y=x?
What matrix represents a stretch of sf a in the x-axis and sf b in the y-axis?
What matrix represents a shear, of sf a, parallel to the x-axis?
What matrix represents a shear, of sf a, parallel to the y-axis?
What does the matrix BA represent? Transformation A followed by transformation B.
What matrix represents a reflection in the plane: A) x=0 B) y=0 C) z=0
What matrix represents a reflection in the plane: A) x=y B) y=z C) z=x
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