MPM2D Learning Activity 3 5 Assessment Opportunity X 5 questions left to ask A group of students launches a model rocket from the top of a building. The 2 free questions expire this month students have determined the equation y = - - (x + 6)(x - 18) to describe the OLA height of the rocket above ground level, y, in metres, at any time, x, in seconds. a) Complete the following table of values to predict the flight of the rocket. O Time, x (s) Height above ground, y (m) 0 54 2 6:4 4 70 6 72 8 70 10 164 12 54 tab 14 40 16 22 18 O shift b) Use the equation to determine the zeros . 7= # ( x+ 6 ) x-18 4:-5 (x12-1 12x- 1081 7= 0.5x 2+ 6+54 ctri a = 0.5 c) Determine the equation of the axis of symmetry. * = 6 2 a x = 6 ( - 0.5 ) X = 6 x- 6= 0 d) Determine the maximum height of the rocket. F ( B ) = 0.5 ( () 2+ 6 ( 6 ) + 54 ( 8 - 1 = 721 2. = 6 ( - 0.5 ) = vertex = ( 6 , 72 ) MPM2D Learning Activity 3.5 Assessment Opportunity e) Graph your results. Model rocket 60 Helght above ground (m) 40 20 10 15 Time after ignition (s)