1. Line Graphing Practice

2. manipulated
independent
x-axis
M I X
D R Y
Y-axis
dependent
responding

3. Determine the Independent and Dependent Variables
Time (sec)
Speed km/sec 1 10 2 15 3 35 4 45
Independent Variable: Time (sec)
Dependent Variable: Speed km/sec

4. Determine the scale of the x-axis if the grid is 10 boxes wide.
Day
Height (cm) 1 5 2 8 3 12 4 20
Scale ≥ Range
# of boxes
Scale ≥ 4 = 0.4  0.5 10

5. Determine the scale of the y- axis if the grid is 10 boxes high
Scale ≥ Range
# of boxes
Scale ≥ 20 = 2 10

6. Determine the Interval of the x- axis if the grid is 12 boxes wide
Time (hrs)
Temperature( ˚C) 12 1 18 2 20 3 21 4 23 5 25
Ix ≥ 5 = 0.42  0.5 12

7. Determine the interval of the y-axis if the grid is 15 boxes high.
Ix ≥ 25 = 1.67  2 15

8. Describe the Graphing Relationship
Cyclic: Temperature goes through a cycle as time goes on, repeating itself.
Temperature
Time in Hours

9. Describe the Graphing Relationship
Direct Relationship:
As the hours spent studying increase, so does the grade on the test.