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http://www.formelfabrik.de In this video I do a word problem on the topic of quadratic functions. The length of bridge piers is to be determined. To do this, the function equation must first be determined using the vertex form. ------------------------------------ All videos are part of playlists on topics from your maths lessons. You can find all playlists here / view_all_playlists Use the playlists to learn. All videos are structured the same. You see the task and now have the option of pressing pause and solving the task yourself. If you get stuck, watch a part of my calculation. If it's too easy for you, skip the film. The important thing is that you are independent and active. If you come across an obstacle, be happy. It's your chance to learn something!