AR Do Now - Matrices 12-10-24

Flashcard
•
Mathematics
•
9th - 12th Grade
•
Hard
Standards-aligned
Wayground Content
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16 questions
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1.
FLASHCARD QUESTION
Front
What is a matrix?
Back
A matrix is a rectangular array of numbers arranged in rows and columns.
2.
FLASHCARD QUESTION
Front
How do you add two matrices?
Back
To add two matrices, add their corresponding elements. Both matrices must have the same dimensions.
Tags
CCSS.HSN.VM.C.8
3.
FLASHCARD QUESTION
Front
How do you subtract two matrices?
Back
To subtract two matrices, subtract their corresponding elements. Both matrices must have the same dimensions.
Tags
CCSS.HSN.VM.C.8
4.
FLASHCARD QUESTION
Front
What is the result of adding the matrices: \[ \begin{pmatrix} 11 & 8 \\ -4 & 2 \end{pmatrix} + \begin{pmatrix} 3 & 2 \\ -6 & -6 \end{pmatrix} \]?
Back
\[ \begin{pmatrix} 14 & 10 \\ -10 & -4 \end{pmatrix} \]
Tags
CCSS.HSN.VM.C.8
5.
FLASHCARD QUESTION
Front
What is the result of subtracting the matrices: \[ \begin{pmatrix} 3 & -4 \\ 8 & -13 \end{pmatrix} - \begin{pmatrix} 0 & -1 \\ 3 & -4 \end{pmatrix} \]?
Back
\[ \begin{pmatrix} 3 & -3 \\ 5 & -9 \end{pmatrix} \]
Tags
CCSS.HSN.VM.C.8
6.
FLASHCARD QUESTION
Front
What does it mean for matrices to be compatible for addition or subtraction?
Back
Matrices are compatible for addition or subtraction if they have the same dimensions (same number of rows and columns).
Tags
CCSS.HSN.VM.C.8
7.
FLASHCARD QUESTION
Front
How do you multiply two matrices?
Back
To multiply two matrices, the number of columns in the first matrix must equal the number of rows in the second matrix. The resulting matrix has dimensions of the number of rows from the first matrix and the number of columns from the second matrix.
Tags
CCSS.HSN.VM.C.8
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