Formative AA Assessment Functions Q1 Let f(x) = x+5 and g(x) =3x- +2x. (a) Find and express in the form ax + bx + c each of the functions (1) (fog)(x) (ii) (g . f)(x) (b) Suppose that (hof )(x) = g(x) . Find h(x) . Q2. Let f(x) =-2x3+8x +1, x52. (a) Express the function in the form f(x) = a(x -h) +k (b) Hence or otherwise find f(x). Q3. 4. [Maximum mark: 5] The graph of the function S (x) =- ax+ is shown below. bx + c (a) Find the values of a,b and c. (b ) Find the x-intercept of the graph