PSLE The graph shows the height of a plant from May to September.
- What was the height of the plant in July?
- 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) = 16 cm
Height of the plant in June (6) = 21 cm
Height of the plant in July (7) =
25 cm Height of the plant in August (8) = 37 cm
Height of the plant in September (9) = 47 cm
Height of the plant in July (7) = 25 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) = 21 - 16 = 5 cm
Increase in height from June (6) to July (7) = 25 - 21 = 4 cm
Increase in height from July (7) to August (8) = 37 - 25 =
12 cm Increase in height from August (8) to September (9) = 47 - 37 = 10 cm
Period which the plant grew the most = July (7) to August (8)
Answer(s): (a) 25 cm; (b) 7 to 8