ful-files from the Internet can contain viruses. Unless you need to edit, it's safer to stay in Protected View. Enable Editing 4. (A 4, C2 Marks) Given the graph of / () as in the figure below, Graph ["(x) = af [-3 (x -2)]- 1 on the same grid (label some pints in the graph of h(x). ) 4 2 -6 -4 -2 2 4 6 8 10 -2 -3 -45. (T 4 Marks) If the average speed of a light plane had been 60km/h less, the plane would have taken one hour longer to fly 1800 km. What was the speed of the plane? ( Note: Solve the problem using algebra. You get no marks for guessing the numbers. )