Concept explainers
(a)
To describe: The given graph as illustrating a direct variation, inverse variation or neither.
(a)
Answer to Problem 1CFU
Inverse Variation
Explanation of Solution
Given information: The graph:
Calculation:
Graph represents an Inverse Variation.
You can see this from the fact that having a variable (x) in the denominator creates a vertical asymptote.
(b)
To describe: The given graph as illustrating a direct variation, inverse variation or neither.
(b)
Answer to Problem 1CFU
Neither
Explanation of Solution
Given information: The graph:
Calculation:
Neither.
The obvious part is to see that as (x) changes, (y) doesn’t.
There’s no variation at all.
(c)
To describe: The given graph as illustrating a direct variation, inverse variation or neither.
(c)
Answer to Problem 1CFU
Direct Variation
Explanation of Solution
Given information: The graph:
Calculation:
Direct Variation.
As x grows, y grows at a specific multiple of x.
You can imagine this as
Chapter 3 Solutions
Advanced Mathematical Concepts: Precalculus with Applications, Student Edition
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