# Matrices Vocab

## 19 terms · Matrices Vocab

### element

Each value in a matrix

rows by columns

### row matrix

a matrix with only one row

### column matrix

a matrix with only one column

### square matrix

a matrix with the same number of rows and columns

### zero matrix

a matrix where every element is zero

### scalar

multiply a matrix by a constant

### transformations

preimage to image

### isometry

equal image and preimage

### determinant

enclosed in parallel lines

### Cramer's Rule

uses determinants to solve systems of equations

### Identity Matrix

when multiplied by another matrix equals the same matrix

### Inverse

product is identity matrix

### matrix

rectangular array of variable or constants in horizontal rows and vertical columns, usually enclosed in brackets

### equal matrix

have same dimensions and corresponding elements

### translation

figure is moved without changing shape, size or orientation

### dilation

figure is enlarged or reduced

### reflection

every point on a figure is mapped to a correspondiong image across a line of symmetry

### rotation

figure is moved around a center point