Highway engineers design a parabolic curve for an entrance ramp from a straight street to an interstate highway. Find the equation of the parabola in standard form using a focus and directrixr.

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter4: Rational Functions And Conics
Section4.3: Conics
Problem 30E: The receiver of a parabolic satellite dish is at the focus of the parabola (see figure). Write an...
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Highway engineers design a parabolic curve for an entrance ramp from
a straight street to an interstate highway. Find the equation of the
parabola in standard form using a focus and directrix.
Interstate
800
(1000, 800)
400
400
800 1200 1600
-400
(1000, –800)
Street
-800
Transcribed Image Text:Highway engineers design a parabolic curve for an entrance ramp from a straight street to an interstate highway. Find the equation of the parabola in standard form using a focus and directrix. Interstate 800 (1000, 800) 400 400 800 1200 1600 -400 (1000, –800) Street -800
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