# 5932 Non-linear Real World Graphs

9 Questions | Total Attempts: 60

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This test is graded manually, as the questions asked do not give an exact answer, but are often estimates based on a graph.

• 1.
The forestry commission has collected data for a particular type of tree. The data set gives the girth of the tree in centimetres at a particular age.On Worksheet 5932, draw a graph of Girth vs Age.
• 2.
Plot these points on Worksheet 5932. Sketch in the curve of best fit. (Extend your curve to x=70)
• 3.
From the graph you have drawn for the above data, find the girth of tree at 4 years old.
• 4.
At what age would the girth of the tree be 80cm?
• 5.
This graph shows the temperature of a person admitted to hospital at 9:00 and the temperature recorded between 9am and 8pm.For how long did the persons temperature rise before reaching a maximum?
• 6.
This graph shows the temperature of a person admitted to hospital at 9:00 and the temperature recorded between 9am and 8pm.What is the maximum temperature in degrees Celcius recorded?
• 7.
This graph shows the temperature of a person admitted to hospital at 9:00 and the temperature recorded between 9am and 8pm.At what time was the temperature 39 degrees?
• 8.
This graph shows the temperature of a person admitted to hospital at 9:00 and the temperature recorded between 9am and 8pm.What was the temperature at 18:00?
• 9.
This graph shows the temperature of a person admitted to hospital at 9:00 and the temperature recorded between 9am and 8pm.Assuming the temperature continues to fall after 20:00, what time would you expect the temperature to reach 37 degrees?
• 10.
Find by interpolation a y value corresponding to x = 25
• 11.
Find by extrapolation a y value corresponding to x = 60