Concept explainers
To calculate: The vertex, focus, directrix, and axis of symmetry.
Answer to Problem 20WE
The required vertex, focus, directrix and axis of symmetry of the parabola are
Explanation of Solution
Given information: The equation of the parabola is
Formula used:
Calculation: Rewrite the given equation in to standard form of equation,
Now, compare
Now,
The vertex are
The focus is
The directrix is
The symmetric axis is
Now, graph the given parabola,
Chapter 9 Solutions
Algebra and Trigonometry: Structure and Method, Book 2
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