Who doesn't like to play a good game. Play Angry Birds on your phone or computer and take a screenshot of thetrajectory path of the bird flying at the pig.

On a computer:Play Angry Birds(*You may have to allow flashplayer*).

Use an image: If you do not want to play the game a few times to experiment with the angles, you can use an image by searching for "angry birds trajectory" and use an image to complete the project.

FIND THE VERTEX

To find the vertex, use the online graphing calculator atDesmos.com. This calculator provides the space to experiment with different equations. Change the center of the image on the graph by clicking on the image in the left column, then alter the coordinates of the center. Choose where to align the horizontal line. Some options include: align the grass, the initial starting point of the bird, or the target. Explain your choice in the reflection. Use what you have learned in this unit to estimate the vertex, and the roots of the quadratic and the equation. Identify the vertex and the roots as points on the graph.

FIND THE EQUATION

Estimate the equation in both the vertex and factored form.

SUBMIT

• Provide a short reflection about playing the game. Was it fun? What level is the picture you used from? How long did you play? Explain the process of finding the vertex and the roots.
• Include both forms of the equation.
• Include the original image and the graph on Desmos.

USING DESMOS

1) How to upload an image into Desmos. Click the plus sign, then choose image. A prompt will instruct you to upload the image.

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