Based on the chart below, how many days did it take to grow from 1 cm to 5 cm?
The chart shows height in centimeters on the x-axis and time in days on the y-axis. These are the values: Day 0 (1 cm), Day 1 (2 cm), Day 2 (3 cm), Day 3 (4 cm), Day 5 (6 cm), Day 6 (7 cm), Day 7 (8 cm), and Day 8 (9 cm)
Image © 2014 Siyavula Education
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