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Matrix
Basic Matrix Operations
Matrix Mult
Domain and Range
Functions / Other
100

Interpret this matrix: 

1  0  0    3

0  1  0   -2

0  0  1    0 

(3, -2, 0)


100

What are the dimensions of this matrix?

2  3

5  3

8  6

3 by 2


100

Are we able to multiply the following matrices? 

No


100

When writing domain and range, we always write it as _______ to _______.

Least to greatest


100

Is this a function? Why/ Why not?

{(1, 5), (2, 10), (3, 15)}

Yes, no x values repeat. 

200

Interpret this matrix: 

1  0   0     6

0  1   1    -2

0  0   0     1


No sol


200

(whiteboard) 

3  -1

4   4

200
Given the following matrices, when multiplied, what will the dimensions of the solution matrix be? 

2 by 3

200

Infinity and negative infinity are always surrounded with 

parenthesis 

200

Is this a function? Why/ why not? 

No, x values repeat


300

Interpret this matrix: 

1  0   1     -7/3

0  1   0    4

0  0   0     0

inf sol


300

(whiteboard +) 

Not possible 

300

(whiteboard 1x2)

23
300

What is the domain of the graph? 

(-3, 4]

300

What is the difference in two:

Domain: -1 </ x </ 4

Domain: {-1, 0, 1, 2, 3, 4} 

First is continuous, 

second is discrete

400
Make this matrix:

x+2y+z=5

2x+y+z=4

x+z=3



400

whiteboard (mult)

3  6

9  12

400

(whiteboard 2x2) 

19  22

43  50


400

What is the range of the graph?

(-1, 5]

400

solve using calc

x + y + z = 4

2x - y + z = 8 

x + 2y - z = -3

(2, -1, 3)


500

Solve this matrix using your calc: 

x+2y+z=5

2x+y+z=4

x+z=3

(0, 1, 3)


500

(whiteboard mult and subtr)

5  -4

3  -9 

500

(whiteboard 2x3)

31  19

85  55

500

DOUBLE JEOPARDY 

Domain and range of this graph? 

Domain: (- inf, inf)

Range: [1, inf)

500

TRIPLE JEOPARDY

Solve the 3 variable system without using tech 

x + y + z = 6

2x - y + 3z = 9

-x + 2y +2z = 9 

(1, 2, 3)