1 / 8

Quadratic Regression

Quadratic Regression. The human cannonball!. Lots of real word phenomena can be modeled with a quadratic function. You’ve seen this with the path of a football. What are some more real life examples of parabolas?. Quadratic Regression.

dolguin
Download Presentation

Quadratic Regression

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Quadratic Regression

  2. The human cannonball!

  3. Lots of real word phenomena can be modeled with a quadratic function. You’ve seen this with the path of a football. What are some more real life examples of parabolas?

  4. Quadratic Regression We can use our calculators to find a quadratic equation that models real-life data. This equation is called a quadratic regression.

  5. Quadratic Regression Steps • STAT → Edit… Enter the data in L1 and L2. • STAT → CALC → QuadReg (Don’t hit Enter) • VARS → Function → Y-Vars → Y1 • Enter You now have a quadratic regression! If you look in Y1, your calculator has entered the equation for you!

  6. Example 1 The table shows the monthly sales (thousands) for a new hair salon since its grand opening in March. 1) Find the best fitting quadratic model. 2) What will the total sales be 7 months after opening?

  7. Example 2 The table shows the height of a model rocket after it is fired upwards from the ground. 1) Find the best fitting quadratic model. 2) When does the rocket hit the ground?

  8. Example 3 The table shows the rate of oxygen consumed by an athlete running at a speed of 16 km/h using various stride lengths. 1) Find the best fitting quadratic model. 2) What is the vertex of the model? What does it mean to the runner?

More Related