Hmmmmmm I think I know the answer to this
Step 1:
a) Write the quadratic model
a = -15.64
b = -1.24
c = 5.23

b) t = 0.30

c) t = 0.52 seconds

d) 0.30 is more likely to be relaible.
e)
F(x) factors as
f(x) = x(x+1)(x-3)
so has zeros of x = -1, 0, 3, because these values make the factors be zero.
The appropriate choice is ...
C. -1, 0, and 3
T is more than -4. Remember that -4 is not included.