The scatterplot shows the relationship between the number of hours, , a new plant has been growing and its height, , in centimeters. A line of best fit is also shown, which passes through approximately and .
Based on the line of best fit, what does the -intercept represent in this context?
The average growth rate of the plant per hour.
The initial height of the plant when it started growing.
The maximum height the plant will reach.
The total number of hours the plant was observed.
