Question 1 f(x) = 2.r - 8r+6. 1.1 Determine the stationary points and inflection points of the function f, and determine where the function is convex and where it is concave, (6) 1.2 Draw the graph of the function. Clearly indicate the stationary points, the inflection points, and the x and y intercepts. State clearly which stationary points are maxima and which are minima. (3) Question 2 Repeat Question 1 for the function (9) Question 3 Write down an equation for a fifth-order polynomial with z-intercepts 1, 2, 3 and 4, that is 1