Concept explainers
a
To Find: The vertex, focus and directive of parabola
a
Answer to Problem 4RE
Vertex= (o, o)
Focus=
Directive is 2x+1=0
Explanation of Solution
Given information:
Concept Used:
Given equation is
By comparing these equations with standard form we can arrive at required values.
Calculation:
Comparing this with standard form
4a=2
a=0.5
Vertex= origin= (0,0)
Co-ordinates of focus= (a,0)= (0.5,0)
Directive is
Hence, vertex
Focus
Directive
Conclusion:
The vertex obtained is
b.
Sketch the graph:
To draw the graph of given equation
b.
Answer to Problem 4RE
The graph
Explanation of Solution
Given information:
Graph
The points on graph would be
Interpretation :
Using these points graph is obtained from
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