In response to a cry for help, Spiderman swings towards a burning building. At the top of his swing he shoots a webline which sticks to the burning skyscraper. At this moment he is in the intersection of two straight weblines. From the picture below:

1. What are Spiderman’s coordinates if you take the Daily Bugle entrance as the origin?
2. Find the equations of the old line (AS) and new line (SB).
3. Show and explain how Spiderman’s location is the intersection of lines AS and SB.
4. Just then the woman in the window drops her Chihuahua. Thinking quickly, Spiderman grabs both webs with one hand and shoots a third web to catch the dog. If it takes the web 1.3 seconds to reach the dog, and the dog can drop 20.9 feet during that time, what is the equation of the line that Spiderman needs to shoot in order to save the dog? (assume webs travel in a perfectly straight line – no gravity).

Objectives served by this problem
• Students know how to develop their own coordinate system?
• How to take origin and then calculate coordinates of the end points of a line?
• How to calculate slope and the y-intercept?
• How to calculate equation of lines from coordinates?
• How to calculate point of intersection of two lines?

The Rubric for this Problem is in the file attachment ALN POM.pdf