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

2. 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.

3. 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”

4. 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.

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

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