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# Parabola Project Prezi

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## Ryan Phifer

on 4 May 2016

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#### Transcript of Parabola Project Prezi

Graphing Quadratic Functions in the Real World
Parabola Project
Weisstein, Eric W. "Hyperbolic Cosine." From MathWorld--A Wolfram Web Resource. <http://mathworld.wolfram.com/HyperbolicCosine.html>.

“St. Louis Gateway Arch.” EnchantedLearning. 2009. Enchanted Learning LLC. 23 Nov. 2009 <http://www.enchantedlearning.com/history/us/monuments/stlouisarch/>.
Works Cited

The picture we chose was of the famous St. Louis Gateway Arch. The Arch was built between 1963 and 1965 as a monument honoring western pioneers. We took this picture on our family vacation to St. Louis over the summer.

The Arch was built of stainless steel and was designed to withstand winds and other natural forces. It sways about one inch in a 20 mph wind, and can sway up to 18 inches in stronger winds.

The Gateway Arch (part of the Jefferson National Expansion Memorial in St. Louis, Missouri) is not a parabola but is a shape known as a catenary.
Project Narrative
f(x) = -.171x2 + 9.295
Vertex (0,9)
X-intercept
(7,0)
X-intercept
(-7,0)
x-intercept (-7,0)
x-intercept (7,0)
Vertex (0,9)
y = -.171x^2 + 9.295
Full transcript