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3. Find an equation of a parabola with a vertex at the origin and directrix y=-3.5 Oy=--x 14 Oy= ? 14 Ox= y 14 Ox=-L 14

3. Find an equation of a parabola with a vertex at the origin and directrix y=-3.5 Oy=--x 14 Oy= ? 14 Ox= y 14 Ox=-L 14

Algebra and Trigonometry (6th Edition)
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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Answer 3 and 4
3. Find an equation of a parabola with a vertex at the origin and directrix y=-3.5 1 Oy=-L 14 1 Oy= L 14 Ox= - 14 Ox=-L, 14 4. The reflecting dish of a parabolic microphone has a cross-section in the shape of a parabola. The microphone itself is placed on the focus of the parabola. the parabola is 40 inches wide and 20 inches deep, how far from the vertex should the microphone be placed? 04 inches 05 inches O8 inches O10 inches
Transcribed Image Text:3. Find an equation of a parabola with a vertex at the origin and directrix y=-3.5 1 Oy=-L 14 1 Oy= L 14 Ox= - 14 Ox=-L, 14 4. The reflecting dish of a parabolic microphone has a cross-section in the shape of a parabola. The microphone itself is placed on the focus of the parabola. the parabola is 40 inches wide and 20 inches deep, how far from the vertex should the microphone be placed? 04 inches 05 inches O8 inches O10 inches
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