A spotlight has a parabolic cross section that is 4 ft wide at the opening and 1.5

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A spotlight has a parabolic cross section that is 4 ft wide at the opening and 1.5 ft deep at the vertex. How far from the vertex is the focus?

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College Algebra Graphs and Models

ISBN: 978-0321845405

5th edition

Authors: Marvin L. Bittinger, Judith A. Beecher, David J. Ellenbogen, Judith A. Penna

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Question Posted: Apr 12, 2016 09:59 AM

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A spotlight has a parabolic cross section that is 4 ft wide at the opening and 1.5

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Position a coordinate system as shown below The parabola ...View the full answer

College Algebra Graphs and Models

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