Concept explainers
To Find: The vertex, focus and directrix of the parabola nd represent it through a graph.
Answer to Problem 7RE
Focus:
Vertex:
Directrix:
Explanation of Solution
Given information:
The equation of the parabola is given in the question.
Calculation:
If equation of parabola is
Vertex of the parabola
Focus of the parabola is
Directrix
By comparing equation 1 with
So, now
Vertex:
So, here vertex
Focus:
Compare equation 2 with
Focus of the parabola is
Directrix:-
Interpretation :
Focus:
Vertex:
Directrix:
Chapter 11 Solutions
Precalculus: Mathematics for Calculus - 6th Edition
- Calculus: Early TranscendentalsCalculusISBN:9781285741550Author:James StewartPublisher:Cengage LearningThomas' Calculus (14th Edition)CalculusISBN:9780134438986Author:Joel R. Hass, Christopher E. Heil, Maurice D. WeirPublisher:PEARSONCalculus: Early Transcendentals (3rd Edition)CalculusISBN:9780134763644Author:William L. Briggs, Lyle Cochran, Bernard Gillett, Eric SchulzPublisher:PEARSON
- Calculus: Early TranscendentalsCalculusISBN:9781319050740Author:Jon Rogawski, Colin Adams, Robert FranzosaPublisher:W. H. FreemanCalculus: Early Transcendental FunctionsCalculusISBN:9781337552516Author:Ron Larson, Bruce H. EdwardsPublisher:Cengage Learning