PSLE The graph shows the height of a plant from July to November.
- What was the height of the plant in September?
- During which period did the plant grow the most? Give your answer in numbers. (Eg Jan to Feb = 1 to 2)
(a)
Height of the plant in July (7) = 18 cm
Height of the plant in August (8) = 27 cm
Height of the plant in September (9) =
33 cm Height of the plant in October (10) = 44 cm
Height of the plant in November (11) = 54 cm
Height of the plant in September (9) = 33 cm
(b)
To find the greatest increase, look for the steepest increase in the line graph.
To prove:
Increase in height from July (7) to August (8) = 27 - 18 = 9 cm
Increase in height from August (8) to September (9) = 33 - 27 = 6 cm
Increase in height from September (9) to October (10) = 44 - 33 =
11 cm Increase in height from October (10) to November (11) = 54 - 44 = 10 cm
Period which the plant grew the most = September (9) to October (10)
Answer(s): (a) 33 cm; (b) 9 to 10