A gardener tracks the height of a particular plant species over several weeks. A line of best fit models the relationship between the number of weeks since planting () and the plant's height in centimeters (). The line passes through the points and . Based on this line of best fit, which of the following is the best interpretation of the -intercept in the context of this problem?
The plant grows 3 cm per week.
The plant's initial height at planting was 0 cm.
The plant's initial height at planting was 12 cm.
The plant's maximum height will be 30 cm.
