What can you model with a Quadratic Function?

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Presentation transcript:

What can you model with a Quadratic Function? Unit 3 - Chapter Task

How to get a Model of a real object. Determine how many parabola’s there are in the image. There is one parabola in this image. Draw a scale on the image that makes sense.

How to get a Model of a real object. Determine how many parabola’s there are in the image. There is one parabola in this image. Draw a scale on the image that makes sense. It makes it easier if the origin is also a root. Make sure to choose values that are representative of the situation. In this case the arch is in St. Louis “The Gateway Arch”

How to get a Model of a real object. The “Gateway arch” is 292 m high. The “Gateway arch “ Is 182 m wide. To determine an equation we can use the zeros in the factored form and use the vertex as a point.

Vertex (91, 292) Zeroes (0,0) & (182,0)

Verify with the TI-83 Calculator Get 7 or 8 points from the graph. Use Quadratic Regression to determine the curve of best fit.