Support local news in Alameda. Give Now!

Math Puzzle for March 15, 2024

To you it’s gravity’s rainbow, but to us it’s a conic section

 

Alameda Post - a parabola drawn over an X Y graph. A line crosses the parabola and the intersection in the bottom left quadrant is labeled A. The intersection of the line and parabola in the upper right quadrant is labeled B

A parabola is drawn symmetric about the y-axis.
A straight line intersects the parabola at points A and B.
Point A has the coordinates ( − 8, − 15 ).
Point B has the coordinates ( 4, 3 ).
Find the length L of the parabola between points A and B.

L = ______ units

The first correct answer sent to [email protected] wins a gift card worth much ice cream at Tucker’s Ice Cream in Alameda.

Last week’s winner was Charles Twitchell with A = 8171.28 square units.

Jeff Smith is a former Math teacher and a retired US Navy Lieutenant Commander. Reach him at [email protected].

KQED Curated Content

Support our mission to provide trustworthy news and information for Alameda every day.

Thanks for reading the

Nonprofit news isn’t free.

Will you take a moment to support Alameda’s only local news source?