A hovercraft takes off from a platform.
Its height (in meters), 2 seconds after takeoff, is modeled by
h(x) = -(x - 11)(x +3)
How many seconds after takeoff will the hovercraft land on the ground?

Find the directions in which the function increases and decreases most rapidly at upper p 0p0. then find the derivatives of the function in these directions. f(x,y)equals=x squared plus xy plus y squaredx2+xy+y2, upper p 0p0left parenthesis 1 comma negative 4 right parenthesis