📚 Topic Summary
A matrix is a rectangular array of numbers, symbols, or expressions, arranged in rows and columns. Matrices are used in various fields such as computer graphics, physics, statistics, and economics. In Algebra 2, you'll learn how to perform operations on matrices, such as addition, subtraction, scalar multiplication, and matrix multiplication. Understanding matrices is crucial for solving systems of linear equations and transformations.
This worksheet introduces basic matrix concepts, terminology, and operations. We'll explore what matrices are, how to identify their dimensions, and some introductory exercises to practice basic skills.
🧮 Part A: Vocabulary
Match the term with its definition:
- Term: Matrix
- Term: Element
- Term: Row
- Term: Column
- Term: Dimension
- Definition: The horizontal arrangement of entries in a matrix.
- Definition: A rectangular array of numbers, symbols, or expressions arranged in rows and columns.
- Definition: The size of a matrix, expressed as rows × columns (e.g., 2x3).
- Definition: The vertical arrangement of entries in a matrix.
- Definition: Each individual item in a matrix.
✍️ Part B: Fill in the Blanks
Complete the following paragraph:
A matrix is a rectangular ______ of numbers arranged in ______ and ______. The ______ of a matrix tells you how many rows and columns it has. Each entry within the matrix is called an ______.
🤔 Part C: Critical Thinking
Explain in your own words why matrices are important in solving systems of linear equations. Provide a real-world example of where matrix operations can be used.