Suppose that the functions / and s are defined for all real numbers x as follows. r (x) =4x s (x) = 3x- Write the expressions for (str) (x) and (s .r) (x) and evaluate (s-r) (-2). ( s + r) (x) - 0 ( s.r) (xx) = 1 X ( s - r) (-2) = 0f(x + h} f (1') h Find the difference quotient , where h i 0, for the function below. f(r) = 3x22x:6 Si x your answer as much as possible. f(x + 1:) f(x) I? 2|] DD E Suppose that the functions f and g are defined as follows. f (x ) = = 9 7 x g (x) = 2x -4 Find the compositions fof and go g. Simplify your answers as much as possible. (Assume that your expressions are defined for all x in the domain of the composition. You do not have to indicate the domain.) ( of ) (xx ) = 1 OO X (8 0 8) (x) = 1 Undo