QTD: "a" investigation

b

g

i

2

7

5

1

9

3

4

8

0

6

b

g

i

7

5

4

8

1

2

3

0

6

9

• 0
• 1
• 2
• 4
• 8
• -1
• -2

• minimum
• 0
• maximum
• 8
• 2
• -2
• -1
• 1
• undefined

• upwards
• downwards

• wider
• 3
• 1
• narrower
• 2

• less than (<)
• greater than (>)

a

e

g

b

9

3

4

7

0

2

1

5

8

6

a

e

g

b

7

8

9

1

0

4

5

6

3

2