Concept explainers
To find: the equation of the parabola.
Answer to Problem 38E
The equation of parabola is
Explanation of Solution
The equation of parabola is
Given information:
Vertex
Directrix has y-intercept
Calculation:because it is given that directrix has y-intercept, so the parabola should be with vertical axis and the intercept is positive so the graph opens downwards so,
So the equation of parabola should be in the following form,
For parabola with verticalaxis, directrix is
Because Directrix has y-intercept
So the equation of parabola is,
Hence, the equation of parabola is
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