Classify each function as a power function, root function, polynomial (state its degree), rational function, algebraic function, trigonometric function, exponential function, or logarithmic function: f(x) = log2x b(x) = 4 sqrt(x) h(x) = 2x3 / 1-x2 u(t) = 1 – 1.1t + 2.54t2 v(t) = 5t w(theta) = sin(theta) cos2(theta)