Question

I need to find the absolute minimum and absolute maximum of function f(t)=t(4-t^2)^(1/2). I ended up with points: (-2,0), (2,0), (1/2,(15)^(1/2)/4), (3(7)^(1/2)/4,2.8). I understand that the absolute maximum must be at x=3(7)^(1/2)/4, but would the absolute minimum be at -2, 2, or neither?