PSLE The graph shows the height of a plant from May to September.
- 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 May (5) = 38 cm
Height of the plant in June (6) = 51 cm
Height of the plant in July (7) = 61 cm
Height of the plant in August (8) = 69 cm
Height of the plant in September (9) =
79 cm Height of the plant in September (9) = 79 cm
(b)
To find the greatest increase, look for the steepest increase in the line graph.
To prove:
Increase in height from May (5) to June (6) = 51 - 38 =
13 cm Increase in height from June (6) to July (7) = 61 - 51 = 10 cm
Increase in height from July (7) to August (8) = 69 - 61 = 8 cm
Increase in height from August (8) to September (9) = 79 - 69 = 10 cm
Period which the plant grew the most = May (5) to June (6)
Answer(s): (a) 79 cm; (b) 5 to 6