Concept explainers
a)
To find: The vertex of parabola.
Answer to Problem 9OE
The vertex of the given parabola is
Explanation of Solution
Given information: The equation of parabola
Formula used:
Calculation: Rearrange the given equation,
Compare
Hence, the vertex
Therefore, the required vertex is
b)
To find: The value of
Answer to Problem 9OE
The value of
Explanation of Solution
Given information: The equation of parabola
Formula used:
Calculation: Rearrange the given equation,
Compare
Hence,
Therefore, the value of
c)
To find: The direction of opening of the parabola.
Answer to Problem 9OE
The parabola opens left.
Explanation of Solution
Given information: The equation of parabola
Formula used:
Calculation: Rearrange the given equation,
Compare
Hence,
Therefore, the direction of opening of the parabola will be left.
Chapter 9 Solutions
Algebra and Trigonometry: Structure and Method, Book 2
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