'Solving matrix equations' presentation slideshows

4.2 Adding and Subtracting Matrices

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Solving Systems Using Matrices

Solving Systems Using Matrices. Section 7.2 & 7.3. Matrix. Row x Column. ROW. COLUMN. Matrix Equation. a x + b y = c d x + e y = f. X. A. B. Solving Matrix Equations. A?X = B A -1 (A ? X) = A -1 (B) X = A -1 B. 2 nd , x -1 ? EDIT Enter in matrix A & B

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4-3 Matrix Multiplication

4-3 Matrix Multiplication. Objectives: To multiply by a scalar To multiply two matrices. Objectives. Multiplying a Matrix by a Scalar Multiplying Matrices. Vocabulary. You can multiply a matrix by a real number. The real number factor (such as 3) is called a scalar. Vocabulary.

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4.5 Solving Systems using Matrix Equations and Inverses

4.5 Solving Systems using Matrix Equations and Inverses. Matrix Equation. A linear system can be written as a matrix equation AX=B. Constant matrix. Coefficient matrix. Variable matrix. Ex. 1 Write as a matrix equation. Solving Matrix Equations. Suppose ax = b How do you solve for x?.

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