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Matrix Dimensions Add/ Subtract Matrices Systems Of Equations Inverse Matrices Other Matrix Information 10 Point 20 Points 30 Points 40 Points 50 Points 10 Point 20 Points 30 Points 40 Points 50 Points 30 Points 40 Points 50 Points Multiply Matrices
Are the rows of a matrix horizontal or vertical?
Horizontal
Horizontal entries of a matrix are called rows. What are the vertical entries called?
Columns
How many rows does the following matrix have?
Three
What are the dimensions of the following matrix?
1x4
What will be the dimensions of the product of the following two matrices?
1x1
Add the following matrices.
Subtract the following matrices.
Solve:
If you multiply a 3x2 matrix with a 2x1 matrix, what will the dimensions of the product be?
3x1
Is it possible to multiply a 3x2 matrix with a 2x1 matrix? How do you know?
Yes, because the “2’s” are equal.
Multiply:
Solve:
x=25 y=-3
Solve:
x=1 y=3 z=-7
Solve:
p=-3 q=5
Solve:
x=-1 y=3 z=2
Solve:
What is the additive identity of a 2x2 matrix?
What is the multiplicative identity of a 2x2 matrix.
Find the inverse of the following matrix (in fraction form):
True of False: and
True
Find the inverse of the following matrix (in fraction form)
Is matrix multiplication commutative?
No
Is matrix addition commutative?
Yes
How many rows does a 3x5 matrix have?
Three
How many columns does a 8x12 matrix have?
12
Create AX=B matrices for the following systems of equations.
Make your wager
Final Answer
Final Question