Question

While standing on a ladder, you drop a paintbrush. The function represents the height y (in feet) of the paintbrush t
seconds after it is dropped. After how many seconds does the paintbrush land on the ground?
y=25-16t^2

Answer 1

0 = 25 - 16 t^2

16 t^2 = 25

t^2 = 25 / 16

t = 5 / 4

1.25 s

Answer 2

tysm