Matrix Operations in Traditional Algebra 2

What is a matrix?

• A circular arrangement of numbers

• A rectangular pattern of numbers

• A triangular pattern of numbers

• A random collection of numbers

In the pizza price table example, what is the price of a drink at Gina's?

• $1.5

• $1

• $0.5

• $2

How are the dimensions of a matrix read?

• Column first, then row

• Row first, then column

• Diagonal first, then row

• Row first, then diagonal

What is the dimension of a matrix with 3 rows and 4 columns?

• 4 by 4

• 4 by 3

• 3 by 4

• 3 by 3

Which element is located at row 2, column 1 in the given matrix?

• Negative fifteen

• Negative two

• One

• Negative six

What must be true about the dimensions of matrices to add or subtract them?

• They must be square matrices

• They must have the same number of rows

• They must be different

• They must be identical

What is the result of adding the elements at row 2, column 1 of two matrices if the elements are 0 and -4?

• -8

• 0

• -4

• 4

When multiplying a matrix by a scalar, what operation is performed?

• Adding the scalar to each element

• Dividing each element by the scalar

• Subtracting the scalar from each element

• Multiplying each element by the scalar

If 10 plus an unknown number equals 6, what is the unknown number?

• -4

• 4

• 6

• -6

What is the value of x if 2x - 6 equals -4?

• 7

• 1

• 2

• 5