topic badge

2.01 Introduction to matrices

Adaptive
Worksheet

Interactive practice questions

Answer the following questions.

a

What is the definition of a matrix?

A rectangular array of only whole numbers.

A

A triangular array of real numbers or symbols.

B

A rectangular array of real numbers, symbols, and expressions.

C

A rectangular array of only real numbers.

D
b

What is a square matrix?

A matrix that contains the same number of rows as columns.

A

A matrix that contains more columns than rows.

B

A matrix that contains more rows than columns.

C
Medium
< 1min
Is the array
    $2$2 $3$3    
    $5$5 $-5$5    
    $7$7 $-8$8    
a matrix?
Medium
< 1min
What is the entry at $a_{23}$a23 in $A$A$=$=
    $-1$1 $6$6 $5$5    
    $8$8 $-7$7 $-9$9    
    $4$4 $-2$2 $3$3    
?
Medium
< 1min
Where is $-7$7 located in $A$A$=$=
    $-4$4 $6$6 $-7$7    
    $-9$9 $8$8 $-5$5    
    $-2$2 $-3$3 $-1$1    
?
Medium
< 1min
Sign up to access Practice Questions
Get full access to our content with a Mathspace account

Outcomes

A2.N.M.A.1

Use matrices to represent data in a real-world context. Interpret rows, columns, and dimensions of matrices in terms of the context.*

A2.MP1

Make sense of problems and persevere in solving them.

A2.MP4

Model with mathematics.

A2.MP6

Attend to precision.

What is Mathspace

About Mathspace