Sangeetha Pulapaka
0

The given equation is v(t) = 320 \cdot 4^{t}

a) v(-2) = 320 \cdot 4^{-2} = 320 \cdot \frac{1}{16} = 20

b) Since t is the number of days since Jada saw the video,  v(-2) represents number of views 2 days before, Jada saw the video. The number of views were 20 then.