Interpreting Quadratic Relations Example 1 Use graphing technology (like Desmos) to graph the relation. Sketch your graph. Identify the key features. = 2 + 2 + 8 a. vertex: _____________________ b. equation of axis of symmetry: _____________________ c. direction of opening: _____________________ d. max or min value: _____________________ e. y-intercepts: _____________________ f. x-intercepts: _____________________ Example 2 The equation = 4.9 2 + 8.2 + 1.8 models the path of a Canadian High School shot put throw, where h is the height of the shot put in metres and d is the horizontal distance from where it was released in metres. a. Use the graphing technology to graph the relation. b. From what height was the shot put released? ___________ c. How far did the shot put go? ___________ d. How high was the shot put 1.5 m away from where it was released? ___________