a = - 1, b = 12, c = 18 x = = b+vb - 4ac 2a X = - 12 + (12) - 4(-1)(18) 2( - 1 ) x =_124 144+72 x = =12+ 216 -2 x =_12+676 - 2 x =6+36 x = 13.348... and x =- 1.348... Because a negative distance does not make sense, Jordan will need to be 13.35 metres away from Carter in order to catch the ball 1 metre above the ground. ~other all you learned in Unit 2. Quadratic functions can be used to model aneware to miestions Workbook 2B nit 2: Quadratic Functions and Equations Final Review Assignment b. Determine the amount of time the brick is in the air if Lucy throws the brick downward with an initial velocity of -5 m/s. Round to the nearest hundredth of a second.Unit 2: Quadrati Unit 2: Quadratic Functions and Equations adratic Equations stitute the known values into the vertex form. ( ) = 36 ( x - 6) + 2.5 -ad simplify to convert from vertex form to standard form. Workbook 2B Unit 2: Quadratic Functions and Equations Final Review Assignment 11. An object falls with an acceleration of a =- 9.81 m/s2. A function relating the height from which the object falls, the initial velocity of the object, and the time the object spends in the air is frequently used in physics. h ( t ) = Vit + at2 Vo = initial velocity t = time a = acceleration due to gravity Lucy and Kim determine the height of a building by dropping a brick from its roof. The initial velocity is 0 m/s because Lucy simply lets go of the brick. Kim times the fall of the brick to be 3.5 seconds. 1 a. What is the height of the building