Provide complete solutions to achieve full marks. 9. A baseball is hit in the air. It's path can be modelled by the relation (A) "=-1(x-9) -57, where y is the height of the ball and x is the 6. For the given parabola determine the coordinates of the vertex. Then horizontal distance, both in metres. write an equation for the relation in the form ) = a(x-#) + *. (5 marks) What is the vertex of this relation? (1 mark) by What is the maximum height of the ball? (1 mark] c) What is the height of the ball when it has travelled a total horizontal distance of 8 m? (7 marks) (C) 7. Determine which relation is linear, quadratic of neither. Justify your answers. (9 marks) a) y= x3 + 4 y = 4x + 6 y = 22 +2 ") What do the coordinates of the vertex represent in this situation? [2 marks) X Y -3 19 -2 -1 3 1 3 19 (K) 10. Graph the following using the vertex and two other points. (8 marks) a. 1=-05(x+4'+3