The height, , in centimeters, of a certain plant weeks after it was planted is modeled by the function . Which statement is the best interpretation of 1.5 in this context?
The plant's initial height was 1.5 cm.
The plant grows 1.5 cm taller each week.
The plant will reach a maximum height of 1.5 cm.
The plant was measured for 1.5 weeks.
