4. Given the functions /(x) = x+ 2 and g(x) = x, determine all values of x for which fig(x)) = g(/(x)). VV 5. The vertical position, h, in meters, of a Ferris wheel, is modelled using the function h(t) = 10 sin (t - 5)|+ 12, where I is the time, in seconds, (a) Determine the period and amplitude of this function. Explain the meaning of these quantities within the context of the question. (b) Calculate the height at 1 = 35 s. 10 (c) Determine the first time that the height is 20 m