Unit 3 Flashcards
1
Q
Before you can multiply two matrices together, the number of ___ in the first matrix must equal the number of rows in the second matrix.
A
columns
2
Q
A(n) ___ matrix is formed by adding a column of the constant terms to the coefficient matrix of a linear system.
A
augmented
3
Q
A number in a matrix is called a(n) ___.
A
element
4
Q
Elementary row ___ are row switching, row multiplication, and row addition.
A
operations
5
Q
A related matrix formed by making the rows of a matrix into columns and the columns into rows is called a(n) ___.
A
transpose
6
Q
A(n) ___ is a rectangular array of numbers.
A
matrix
7
Q
Only matrices of the same ___ can be added or subtracted.
A
dimension
8
Q
A determinant will have a(n) ___, and the matrix will have an inverse if the determinant is not zero.
A
reciprocal
9
Q
A
