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Grade 8 · Graphs
Interpreting & Drawing Graphs
MEMORANDUM
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Class: 
Date: 
Mark
  / 16

Answer all questions. Show all your working — marks are awarded for method as well as the final answer. Teacher copy: accept any correct equivalent method.

  1. 1
    A graph goes up steadily from left to right. Describe it in one word.
    (2)
    Increasing✓✓ (2)
  2. 2
    What does a flat horizontal section of a graph tell you?
    (2)
    The quantity is constant — it is not changing.✓✓ (2)
  3. 3
    Is a perfectly straight-line graph linear or non-linear?
    (2)
    Linear✓✓ (2)
  4. 4
    Is 'the number of cars in a parking lot' discrete or continuous?
    (2)
    Discrete — you can only count whole cars.✓✓ (2)
  5. 5
    Is 'the temperature during the day' discrete or continuous?
    (2)
    Continuous — it can take any value.✓✓ (2)
  6. 6
    What is the name of the highest point on a graph?
    (2)
    The maximum✓✓ (2)
  7. 7
    How do you plot (5 ; 1)?
    (2)
    From the origin go 5 right, then 1 up.✓✓ (2)
  8. 8
    A distance-time graph is flat for 10 minutes. What is happening?
    (2)
    The person is stationary (not moving) for those 10 minutes.✓✓ (2)
TOTAL: 16 marks
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