The height , in centimeters, of a certain plant days after germination is modeled by the equation . Which of the following statements is the best interpretation of the number 2.5 in this equation?
The initial height of the plant was 2.5 cm.
The plant grows at a rate of 2.5 cm per day.
The plant reaches a height of 2.5 cm after 10 days.
The plant grows 10 cm every 2.5 days.
