QTD: "b" investigation

a

g

6

4

0

1

8

2

7

9

5

3

a

g

6

1

3

4

8

0

7

5

9

2

• 0
• 9
• 2
• -2

• 0
• 9
• 2
• -2
• minimum
• maximum

• upwards

• downwards

• upwards

• downwards

• narrower
• 2.25
• wider
• 1.5
• 9
• 3

• greater than (>)

• less than (<)

g

h

i

f

1

2.25

-2.25

-1.25

0

0.25

1.25

-1

-0.25

g

h

i

f

1.25

2.25

-0.25

-1

-2.25

-1.25

1

0

0.25